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Posts Tagged ‘global Warming’

Is Carbon Capture and Storage a Viable Option?

Sun ,17/10/2021

The countries of the world have reached a consensus that we need to reduce our carbon emissions. One proposal to do that is to switch to a hydrogen economy. The problem is that currently about 95% of the hydrogen we use is made using fossil fuels, which is an energy-intensive process that produces more CO2. The fossil fuel companies plan to get around that is to capture the carbon produced and store it (CCS). The questions that must be answered are how to capture the carbon, where to store it, and how much it will cost.

It is possible to capture the CO2 and there are now several plants currently doing it. Much of the captured carbon is currently used to produce more fossil fuels, so there is little gain in doing it. The chart below will give you an idea of the magnitude of the problem. Currently, we are adding 35 billion tons of carbon dioxide to the atmosphere each year. The amount of carbon currently captured is 0.006% of that, an amount so small that it could not even be seen on the chart.


If carbon capture could be scaled up to capture most of the CO2 we are emitting, then where would we store it? The most obvious solution is to store it where it came from. The carbon from coal is mostly from strip mines and open mines, and it cannot be stored there. For petroleum and methane, storing it back underground is a possibility. However, burning them combines them with oxygen – and increases the mass and volume by a factor of two or three. It would be impossible to store more than a fraction of the CO2 back underground.


Assuming we could capture the carbon and find a place to store it, what would be the cost? This would involve acquiring the land, building the thousands of CCS plants required, and providing the energy necessary for the process. That cost has been estimated to be about $5 trillion a year, at current prices, for the rest of this century. There are certainly much less expensive options available.


So there you have it, the amount of CO2 we are putting into the atmosphere is far too great to capture, there is no adequate place to store captured CO2, and the cost would be astronomical. However, the fossil fuel companies are willing to try if we subsidize their costs, fund their research, and wait 80 years. It will be painfully obvious, long before then, that CCS is unworkable. The best plan is obviously to stop putting more carbon dioxide into the atmosphere, a solution the fossil fuel companies are unwilling to accept.


Global Warming: The Rise of Methane

Mon ,15/02/2021

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Greenhouse gases play a huge role in keeping the surface of the Earth warm. Without the greenhouse effect, the temperature of the Earth would average about -18°C, and all the water on the Earth’s surface would be ice. The average temperature of the Earth’s surface is now about 15°C and rising. The graph below shows the concentration of the main greenhouse gases in the Earth’s atmosphere, and how they have changed in the last two millennia. 

Inarguably, an increase in the greenhouse gas concentrations will warm the Earth – and we are seeing that happen. The average temperature of the Earth is now 1.2°F warmer than it was in 1850. The temperature of the Earth was fairly constant over the thousand years before the industrial age, and people, plants, animals, and our agricultural practices have adapted to that temperature. What will happen as the Earth’s temperature rises? We are finding out, and the effects are alarming.

Of the greenhouse gases, water accounts for about 70% of the greenhouse effect, carbon dioxide about 20%, methane 4%, nitrous oxide 1%, and the other greenhouse gases together about 5%. Our efforts to reduce global warming have focused mostly on carbon dioxide, as its concentration has increased over 40% from our use of fossil fuels. It will take time to phase out fossil fuels and transition to the use of renewable energy. The concentration of methane has grown appreciably in the last century, from about 800 parts per billion (ppb) to over 1900 ppb and it is rising rapidly. Methane has about an eight year half-life in the atmosphere before it is converted to carbon dioxide by natural process. The methane in the atmosphere would decrease quickly if we stopped putting it there. That is important, as methane has about 72 times the global warming potential of carbon dioxide.

The main cause of the rise in methane is commercial leaks, oil production, and fracking operations. In commercial sales, it is sometimes less expensive to ignore small leaks than to fix them. But many small leaks add up and it has been estimated that about 10% of natural gas put into pipelines is lost before it reaches the end user. Some of those problems could be fixed. Methane is also produced as a byproduct of oil production. If the amount of gas is too small to be sold commercially, it is often flared, i.e., lit like a torch. That converts it into carbon dioxide, which is less damaging to the environment. 

Fracking operations now produce a tremendous amount of natural gas for commercial use, and considerable amounts of methane escape into the atmosphere from the drilling operations and pipeline leaks. It requires effort and resources to contain the methane at the wellhead and to fix storage and transmission leaks. The EPA requires that leaks be self-reported, but often they were just ignored. Just recently, it has become possible to detect methane from GHGSat satellites. Below is a map that shows eight leaks in a 25 mi.² area in Turkmenistan, as they were seen by satellite. Estimates were that those leaks accounted for about 10,000 kg of methane a day. The methane was from fracking operations, pipeline leaks, and unlit flares.

Before satellites, most methane emissions were discovered by infrared cameras. Using them, it was found that the methane emissions from the Permian basin in Texas and New Mexico were much greater than those reported. Much of that came from unlit flares, which could easily be corrected. One accident at a gas well in Ohio is now thought to be the largest methane leak ever in the United States. Three different oil and gas facilities in Algeria were found to be leaking methane amounts equivalent to the carbon dioxide produced by a medium-size coal-fired power plant. The detection of leaks has been spotty and regulation of leaks has been difficult in the past. There is considerable economic incentive for gas companies to reduce methane emissions from leaks. However, it is expensive to send out crews to detect and repair smaller leaks, and many companies have just let them go.

The EPA expects the oil and gas industry to self-report and to repair leaks, but many companies just don’t. There are plans to deploy seven more GHGSat satellites to monitor greenhouse gas emissions. With them, it will be possible to detect and enforce the regulation of many methane leaks. It has been estimated that cutting methane emissions by 40% would have the same effect as taking 60% of the world’s coal-fired power plants off-line. And, we could easily cut methane emissions by 40% within the next decade.

(C) 2021 J.C. Moore All rights reserved.

Global Warming and the Jet Stream

Sun ,14/02/2021

The Arctic is much warmer now than it was 30 years ago. They even had 100° days in Siberia last summer. The warming Arctic has caused changes in the jet stream, which controls the Northern Hemispheres’ weather. The Rossby waves in the jet stream,  that move from west to east across the United States, (see picture), now come down further and move slower from west to east.

This means that the jet stream can sometimes pull Arctic air down from the Arctic region, called a Polar Vortex. The slower movement of the Rossby Waves causes the extreme cold to persist for longer. It is 3° today in Kansas, the windchill is -15°, and this cold spell will persist for about a week. If it is extremely cold and snowy where you live, you can thank global warming for that.

Rossby Waves of the Jet Stream

Please Nominate Your Candidates for the 2017 Environmental Hall of Fame/Shame Awards

Tue ,27/03/2018

Last year, 2017, saw some real heroes and villains with respect to the environment. It is important that we recognize those who most affected the environment, for good or ill, by their words or actions.

Each year, this site Earthrise2takes a poll to find those most deserving to be in the Environmental Hall of Fame or the Environmental Hall of Shame. Please send  your nominations  for  each category by e-mail through the “Contact the Author”   link, send it to moorejc2646@gmail.com, or put it in the comment section. If you would like, please include a short reason that your nominee should be chosen and suggest a suitable gift if they win.

Nominations will be taken until May 15, 2018. The nominees will then be  listed  and this site will conduct a poll to determine the winner in each category.  You may suggest a suitable prize for your nominee. Please be imaginative, as particularly thoughtful or humorous  nominations will  be recognized and published on this site.

(c) 2018 J.C. Moore

Has Global Warming Made Hurricane Damage Worse?

Sun ,31/12/2017

Hurricanes are the most violent and destructive storms in nature. There’s a smaller, yet potentially destructive, storm raging between climate scientists and climate skeptics about the nature of hurricanes. The scientific evidence points to the fact that global warming  causes hurricanes to be more intense. Skeptics would like to convince everyone that global warming has not made any change in hurricanes, so there is no need to address global warming. Skeptics do have a point or two, but not many. Skeptics want absolute proof from the scientists, but science doesn’t work that way. The changes caused by a warming world have changed the probability of the occurrence of extreme weather events, and skeptics apparently don’t want to consider probabilities.

Skeptics say that the number of hurricanes in the Southern Atlantic is not increasing, and they’re probably right on that. Hurricanes begin as tropical storms, which occur at random depending on the weather conditions. Skeptics also say that the increasing economic damages done by hurricane is because of the increased construction along the coasts. That is partly right, but it is also right that the damage done by storm surges has increased because of increased sea level rise, which is a measurable consequence of global warming. Those who listen to the skeptics, and unwisely build in floodplains, are sure to experience more damage from storm surges.

Global warming has made the oceans much warmer, even later into the year. The water temperature must be above 82°F for a tropical storm to grow into a hurricane, and the warmer the ocean the more likely it is that the a hurricane, once formed,  will intensify. Hurricanes are much like a heat engine, they are driven by the warm air rising from the oceans much like a chimney effect. The greater the temperature difference between the ocean and the upper atmosphere, the faster the flow upward and the greater the wind speeds.

If you could slice into a hurricane, it would look something like the diagram below. It has a low pressure eye at the center, and the air drawn into it rises and circulates counterclockwise around the low pressure area, faster and faster as it nears the eye. The small red arrows show warm, moist air rising from the ocean, and forming bands of clouds around the eye. As the warm moist air produces rain, more heat is released, warming the air further and causing it to rise faster until it reaches the top of the storm. Reaching there, it has become cooler and dryer. The blue arrows show how the cool, dry air then sinks in the eye and between the bands of clouds. Remember that the bands of clouds are rotating very quickly, and the large red arrow show the rotation of the rising bands of clouds.

.                                                                                                                                                      Credit: Kelvinsong

A hurricane is much like a heat engine. It is driven by the energy from the warm oceans and the cold temperature of the atmosphere above the storm. Because of global warming, that temperature difference is greater. The upper atmosphere receives its energy from the earth below. The increasing carbon dioxide between acts as a blanket, which causes the oceans to be warmer and the upper atmosphere to be colder. As in all heat engines, the greater the temperature difference, the more power the engine has. As a hurricane passes, it leaves the oceans cooler behind it as it sucks energy from the ocean. Because of global warming, the warmth goes deeper there is a greater area of warm water,  both factors which provide more heat to the hurricane and cause it to increase in size and intensify.

The vapor pressure of water increases exponentially with temperature. In our warmer world, there is now 10 to 15% more water vapor in the rain bands moving around the hurricane. When hurricane Harvey made landfall over Houston, it could be expected that Houston would receive increased rainfall. But by chance, Harvey stalled  over Houston and continued to pull warm moist air in from the Gulf, dumping over 50 inches of rain. Sea level rise has been measured to be about 30 inches along the Gulf Coast. The extreme rainfall coupled with the sea level rise  increased the storm surge and flooded much of the lower areas of Houston. The storm’s stalling was a chance event, and the skeptics are right when they say it should not have happened, but it did. Considering the storm’s intensity, the wind damage, the sea level rise, and the extreme rainfall, climate scientists attribute about 30% of the damage in Houston to global warming.

Below is a satellite image of hurricane Irma on the right, compared in size to the smaller hurricane Andrew which struck Florida in 1992, killing 65 people, destroying 65,000 home, and doing $26 billion in damages. Andrew was the  the most destructive hurricane to hit Florida ever before, and Irma could have been much worse.  

Florida was extremely lucky that hurricane Irma, wider than the whole Peninsula, went up the western side of the Peninsula. The western side of the  Peninsula experienced very little storm surge. The winds on the leading edge of the Irma, circulating counterclockwise, blew the ocean water away from shore, leaving the ocean dry for several hundred yards out as it passed. The storm was so weakened that by the time the back of the storm made landfall, directing the water toward shore, that the storm surge was only a few feet. Had Irma gone up the east side of Florida, the storm surge at the leading edge of the hurricane could have been as much as 15 feet, completely inundating much of Miami.

There you have it. Global warming has increased the temperatures of the oceans and has increased the temperature difference between the oceans and the upper atmosphere, both factors which tend to make the hurricanes more intense. The warmer oceans put more moisture into the air, making the rainfall from the hurricanes greater, and sea level rise has increased the height of the destructive storm surges. This fall, there were five intense hurricanes which formed in the Southern Atlantic, all of them making landfall and doing extensive damage. That could just be a chance occurrence, as the skeptics claim, but it has never happened before.

(c) 2017 –  J.C. Moore

Note added on 09/01/2021. Here is a great slde show analyzing hurricanes as heat engines: https://www3.nd.edu/~its/Emanuel.pdf

Who’s Afraid of Climate Change?

Mon ,06/11/2017

What do you fear? People are moved to action by their fears. Sometimes our fears lurk at the edge of our consciousness, and then are brought into sharp focus by events. Dying oceans, polluted lakes and streams, unsafe drinking water in major cities, catastrophic hurricanes, severe drought and wildfires, and an increase in the severity of weather events, have brought environmental problems into the things Americans fear.

The annual Chapman University Survey of American Fears in 2017 provides an in-depth examination into the fears of average Americans. The survey looked at 80 fears and ranked them according to the survey responses The chart below lists America’s top 10 fears for 2017. For the first time ever, not one, but four of the top 10 fears are related to the deterioration of the environment. Pollution of natural waters, unsafe drinking water, global warming, and air pollution are now among Americans worst 10 fears.

It is not only natural disasters that occurred in 2017, but also political events . Americans had considered that the Environmental Protection Agency would protect our natural waters from pollution. However, Scott Pruitt, the current Environmental Protection Agency director, decided not to enforce major pollution laws, and fired the EPA’s entire Science Advisory Board. No advice, no research, no problem. People are beginning to realize that what you don’t know can hurt you.

The publicity surrounding the failure of the state and local government of Flint Michigan to protect the city’s residents from lead poisoning, and the subsequent discovery of lead and other toxins in our city water supplies, have made people fear that their water is not safe to drink. Almost everyone lives downstream from someone, and pollutants that find their way into our water supplies are bound to find their way into us.

Many Americans perceived the results of climate change remote and far into the future. The attribution of worsening disasters to climate change, and the US withdrawal from the Paris Climate Accord have brought carbon emissions and air pollution into sharper focus. Pictures of severe smog in China and the data from the American Heart and the American Lung Associations about the number of deaths caused by air pollution and particulates are making people increasingly fear for their health.

Action and participation is the antidote for what fear can create, a  feeling of helplessness. Our fears should create the will for political action on climate change and pollution. Even with the failure of our government and the EPA to protect the environment, we can still do it using market forces. The best plan is the carbon fee and dividend system as proposed by the Citizens Climate Lobby. The CCL legislative proposal would set an initial fee on carbon at $15 per ton of CO2 at the source and would increase it by $10 each year until the CO2 emissions were reduced to 10% of the 1990 US levels. The carbon fees are not a tax, as they would be rebated 100% to American households. It would give every American citizen a stake in conserving energy and reducing their use of carbon fuels,  which would both cut pollution and improve the economy. Exercise the power in your citizenship, and insist your Representative support action on climate change.

Credit: Thanks to Darrel Hart, President of the Wichita CCL Chapter, for suggesting the idea and supplying some of the wording in the article.

(C) 2017 J.C. Moore

 

 

Climate Change: The Oceans Response

Mon ,22/05/2017

This guest article is a PowerPoint presentation given by Dr. Rick Cowlishaw in April at the Citizens’ Climate Education meeting in Wichita. Dr. Cowlishaw is Professor of Biology at Southwestern College in Winfield, Kansas. He describes how the warming oceans, altered ocean currents, sea level rise, and ocean acidification are affecting the oceans, marine life, and eventually us.

Though you may miss some things without Dr. Cowlishaw’s guidance, the slides are mostly self-explanatory. You will need a PowerPoint program to view the slides –  you may  download a free viewer here. The slides will display as set in your viewer. Please click on the link below to start the program.

Climate Change_The Oceans Response 

We greatly appreciate the work that Dr. Cowlishaw put into the presentation, and for his permission to post it here.

J.C. Moore

 

Winners of the 2016 Hall Of Fame and Hall of Shame Awards

Wed ,01/03/2017

  Thanks  to those of you who submitted nominations and who voted.  The four top candidates in each category were selected from the nominees and the poll was  conducted on three internet sites and Facebook. This year’s winners won by landslides.

Here are the winners:

Hall of Fame 

1. Dr. Katharine Hayhoe ( 91% of the vote) –  an atmospheric scientist at Texas Tech University, she is director of the Climate Science Center. She is an evangelical Christian who believes that science and religion do not have to conflict with one another. She has been a persuasive spokesperson for action on global warming and supports a  Carbon Fee and Dividend proposal to address the issue.

Award: An appreciation of climate science by conservatives.

2. The Standing Rock Sioux (5%) – for opposing the Dakota Access Pipeline to protect their water quality after it was routed through their reservation due to concerns of other communities for the same reason. Facing militarized police forces and North Dakota’s most severe blizzards and sub zero winds they prevailed in efforts on the reservation and in the media capturing the support of much of the nation.

Suggested Award: A proper, nonpolitical environmental review before any more construction.

3. President Barack Obama (2%) – for coordinating and implementing a global climate pact signed by 195 countries, including the US, even in the face of a Congress that would stop at nothing to prevent it.  President Obama managed to tie the US Paris agreement to a previous treaty to avoid a possible defeat in Congress.

Prize : Clean air and water for our grandchildren as his legacy.

4China (2%) –for announcing an investment of $361 billion in renewable energy by 2020 (and probably taking the global lead in green tech – a sad, missed opportunity for the US, but a great achievement for our shared future). China has also just cancelled the construction of 100 coal fired power plants to be replaced with wind and solar energy.

Award : Being able to go outdoors in the cities without a mask.

 

Hall of Shame 

 

 1. The  Palm Oil industry (91% of the vote.) –  Palm Oil is found in roughly half the packaged products sold in US grocery stores, creating a skyrocketing demand for the oil. This demand has led to the burning of millions of acres of tropical rain forests and jungles, caused the loss of wildlife and eco-system, contributed to climate change, and spread corruption to local and national governments. It is also responsible for human rights violations as corporations often forcefully remove Indigenous Peoples from their lands and its production has led to child labor violations and modern day slavery.

Suggested Award : A boycott of all conflict palm oil products.

2. Trump voters (5%) – for electing a President more than willing to undo even the modest progress the Paris Agreement would/could have accomplished – and most certainly will work to enable completion of the Keystone Pipeline, and push the Dakota Access pipeline in which he seems to have a financial interest. He has promised to remove/rollback decades of regulations designed to improve the quality of our air, water, and soil.

Suggested Award: May you drink water approved by Scott Pruitt’s EPA.

3. Governor Scott Walker  of Wisconsin (2%) – for appointing a real estate lady to head the Wisconsin Department of Natural Resources (DNR), scattering the DNR programs among five agencies making conservation more costly and less effective, halting enforcement of environmental regulations, and scrubbing anything  involving Climate Change from DNR computers.

Wished for Award: A resounding defeat in the next election.

4. Utah Congressman Rob Bishop (2%)  –  chairman of the powerful House Committee on Natural Resources, with sway over issues ranging from energy production to mining, fisheries, and wildlife across one-fifth of the nation’s landmass. He wants to overturn Obama’s Bear’s Ears monument, taking the land away from a coalition of native American tribes so it can be broken up and sold to mining and lumber interests. He introduced a Constitutional amendment that would take away the right of the President to designate national monuments, and has fought to weaken environmental laws and neuter federal agencies like the Bureau of Land Management, the National Park Service, and the Forest Service.

Award: Perhaps having the federal agencies return the favor.

 

It looks like 2017 will have some epic battles between conservationists and corporate polluters. Please keep in mind those who affect the environment the most for good or ill for your 2017 nominations.

(c) 2017 – J.C. Moore

 

We Must Switch to Renewable Energy

Mon ,25/07/2016

We must switch to renewable energy for health reasons, economic reasons, and environmental Temp pathsreasons.

Health reasons: The American Lung Association estimates that there are 26,000 deaths and 1.5 million cases of acute bronchitis and aggravated asthma caused by small particulates, much of it emitted from coal-fired power plants and from coal ash disposal. They estimate the economic benefits of reduced exposure to particulates alone could reach as much as $281 billion annually. Recently, fine particles have been implicated as a cause of Alzheimer’s and Parkinson’s disease and new research has revealed a troubling link between mental illness and air pollution that seems to particularly effect children.

Economic reasons: Besides reducing health care costs, a switch to renewable energy will help keep our future electric rates low. Wind and solar are falling in cost and are now competitive with energy from coal-fired power plants. Recently AEP/PSO in Oklahoma purchased 800 MW of wind energy saying the cost was now less than building new coal fired plants, and that the purchase will save an estimated $53 million in the first year and even more thereafter. Kansas currently has 27,000 jobs in the clean energy sector. Of those jobs 75% are in wind energy, and are growing at a rate of 2.3% per year.  By the end of 2016, 32% of Westar’s retail electricity will come from the wind.

Environmental reasons: Coal is 65 to 95 % carbon. What about the rest? Burning coal releases mercury, chromium, lead, cadmium, arsenic, sulfur oxides, nitrogen oxides, carbon dioxide,  particulates, and radioactive isotopes. Burning  coal releases millions of tons of pollutants into the air and leaves several hundred million tons behind in the coal ash. Some pollutants stay in the air and others eventually find their way into the water, the food chain, and into us. For comparison, mercury is 100 times as toxic as cyanide, arsenic is 20 times as toxic, and chromium(VI) is 4 times as toxic. These three are also are carcinogenic and accumulate in tissue. Even exposure below the allowed levels increases the chance of cancer over time. The sulfur, nitrogen oxides, and carbon dioxide released by coal combustion harm plants, produce acid rain, and increase the greenhouse gas concentrations. Switching to renewable energy would greatly reduce these  pollutants and help preserve the environment for future generations.

Summary: Investing in clean energy protects the environment, reduces death and disease from air pollution, and creates good, local jobs. We must develop policies to encourage the development of renewable energy investments and energy conservation. Our energy needs will best be served by a mixture of traditional and alternate energy sources, and we must be proactive in developing our renewable energy resources.

(c) 2016 J.C. Moore

Climate Change: Science and Solutions

Thu ,21/04/2016

This presentation was given at the Great Plains Conference on Animals and the Environment at Fort Hays State University for Earth Day 2016.  The first part of the program presents the evidenceccl1 for climate change and explains the urgency for taking action. The second part of the presentation explains the Citizens’ Climate Lobby’s  proposal to reduce our carbon emissions below 1990 levels by 2035.  The plan, with broad bipartisan support, would place a fee on carbon at the source and allow market forces to encourage reduced emissions, energy conservation and investments in renewable energy.

Science and Solutions 

Please click on the link above. You will need a PowerPoint program to view the slides – or you may  download a free viewer here. The slides will display as set in your viewer. The slides were meant to be somewhat self-explanatory, but if you have questions you may email the author or post your questions in the comment section. The slides were  prepared by Darrel Hart, Mark Shobe, and J.C. Moore.