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Uncounted emissions

December 20, 2023 By EarthWise Leave a Comment

Most countries around the world have pledged to cut their carbon emissions to try to reduce the effects of climate change.  The extent to which countries are meeting their emission reduction goals has been the primary way of keeping score on their efforts.  But there is a major problem with this scorekeeping system: exporting fossil fuels does not count as part of a country’s contributions to emissions.

Exports of fossil fuel are the driving force of fossil fuel expansion around the world and a significant fraction of those exports come from powerful and wealthy nations that are essential to the effort to reduce carbon emissions.

Our own country is a prime example.  The U.S. is working to cut back its carbon emissions.  The Inflation Reduction Act is driving the reduction of domestic use of oil, gas, and coal and is providing subsidies for the use of heat pumps and the buildout of EV charging networks.  However, at the same time, U.S. production of fossil fuels is booming, driving substantial profits for that industry.  The result is that much of the expanding supply of fossil fuels is headed overseas.

American liquified natural gas exports are growing rapidly.  Estimates are that by 2030, United States LNG exports will be responsible for more greenhouse gas emissions than every house, car, and factory in the European Union.  And, according to the UN emissions accounting system, none of those emissions will be attributed to the United States. 

The situation is rather disastrous.  Countries use this loophole to claim they are doing their part to reduce emissions, but the world is continuing to suffer the consequences.

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Uncounted Emissions: The Hidden Cost of Fossil Fuel Exports

Photo, posted January 9, 2015, courtesy of Bernard Spragg via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Fossil-free fertilizer

November 9, 2023 By EarthWise Leave a Comment

A fossil fuel-free ammonia plant in Kenya

Ammonia is a major industrial commodity.  About 70% of it is used to make fertilizer, with the rest for a wide range of industrial applications.  Ammonia is the starting point for all mineral nitrogen fertilizers. 

Typically, ammonia is a byproduct of isolating hydrogen from natural gas, which releases large amounts of carbon dioxide.  On a global scale, the climate impact of ammonia production is comparable to that of air travel.  The world needs more ammonia but really cannot afford the emissions that come with its production.

There are also political implications of ammonia production.  Because it relies so heavily on natural gas, ammonia supply is vulnerable to disruptions from events like the Russian invasion of Ukraine.  Sanctions imposed after the invasion have hindered fertilizer exports, driving up costs, especially in places like Africa.

A small fertilizer plant near Nairobi, Kenya will be the first farm in the world to produce its own nitrogen fertilizer on site that is free of fossil fuels.  The plant is being built by an American startup company Talus Renewables and will use solar power to strip hydrogen from water.  The hydrogen will then bond with nitrogen from the air to form liquid ammonia.  The plant will produce one ton of ammonia each day.

The typical bag of fertilizer in sub-Saharan Africa travels 6,000 miles to get there, which of course only adds to the environmental burden of using it as well as its cost.  By building a small green ammonia plant like the one coming online in Kenya, it is possible to locally produce a critical raw material in a carbon-free manner.

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Farm in Kenya First to Produce Fossil-Free Fertilizer On Site

Photo courtesy of Talus Renewables via LinkedIn.

Earth Wise is a production of WAMC Northeast Public Radio

Clean Energy From North Africa | Earth Wise

April 7, 2023 By EarthWise Leave a Comment

Europe turning to North Africa for its clean energy needs

Europe is hungry for clean energy.  The war in Ukraine has amplified Europe’s desire to end its reliance on Russian natural gas.  Increasingly, Europe is pushing to install giant solar energy farms in sunny North Africa and transport the energy through underwater cables.

Solar panels in sunny North Africa generate up to three times more energy than those in Europe.  As a result, solar farms and wind farms as well are proliferating south of the Mediterranean Sea.  Morocco’s Noor and Egypt’s Benban solar farms are among the largest in the world.  Many of these farms were initially built to boost domestic power supplies and reduce dependence on coal.  But now these farms are increasingly supplying green energy to industrial neighbors in Europe.

Morocco has signed deals with the European Union to expand power exports.  Egypt is considering proposals for cables to link to Greece.  Another planned cable would link new solar farms in Tunisia to Italy’s grid.  These projects would certainly bring money and jobs to North African countries, but it isn’t all good news.

There are growing concerns about the environmental impacts of Europe outsourcing its energy needs.  Desert ecosystems could be greatly compromised.  And much of this development is likely to happen with only minimal community consultation or ecological assessment.  Half of Africa’s population does not have access to reliable power grids. Electricity becoming a major export is not likely to improve this situation.

Europe has long obtained many resources from the developing world.  Now it is tapping into the sunshine and wind in other lands.  It remains to be seen if North Africa’s countries will achieve the large potential gains those resources can offer them.

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In Scramble for Clean Energy, Europe Is Turning to North Africa

Photo, posted October 17, 2019, courtesy of Richard Allaway via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

A Complicated Year For Energy | Earth Wise

February 6, 2023 By EarthWise Leave a Comment

2022 was a complicated year for energy

2022 was a complicated year for global energy.  Following its invasion of Ukraine, Russia curtailed natural gas exports to Europe.  This led to large increases in coal burning in many countries, but at the same time led to major new investments in renewable energy.  Projections are that the world will add as much renewable power in the next five years as it did over the previous 20.

In China, severe drought reduced the amount of available hydropower, which drove increased demand for coal in that country.  Between the war in Ukraine and the Chinese drought, coal burning reached an all-time high in 2022, albeit only a 1% uptick for the year.  This increased coal consumption is expected to be only temporary as the accelerating deployment of renewables, energy efficiency, and the use of heat pumps will inexorably reduce coal use.

Globally, governments have earmarked an additional $500 billion for clean energy just since March, bringing the total since the onset of the COVID pandemic to more than $1.2 trillion.  Nearly half of this total investment comes from the U.S. under the Inflation Reduction Act and the Infrastructure Investment and Jobs Act.

In light of these energy policies around the world, the International Energy Agency has revised its projections for renewable energy to substantially larger numbers.   Renewables are expected to surpass coal as the world’s largest source of electricity by early 2025. The global energy crisis triggered by the war in Ukraine has kicked off an extraordinary new phase of rapid renewables growth as countries around the world are seeking to obtain energy security as well as the other benefits of clean energy.

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In 2022, Energy Shocks Spurred Both Unprecedented Coal Burning and Massive Renewable Investments

Photo, posted April 5, 2015, courtesy of Jan Remund via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Weaning Off Fossil Fuels | Earth Wise            

June 2, 2022 By EarthWise Leave a Comment

How to break free of our dependence on fossil fuel

We recently talked about California producing 97% of its electricity from renewables on one sunny afternoon in April.  On May 8th, the state produced enough renewable electricity to meet 103% of consumer demand.  These sorts of records are likely to be increasingly commonplace in the spring when the weather is still fairly mild.

But even while renewables were producing more electricity than California needed, natural gas power plants in the state were still running.

Turning off the gas power plants is not possible.  The reason is that as the sun sets and solar farms stop producing power, California has to quickly replace the power with electricity from other sources.  Natural gas plants are massive industrial facilities that cannot be turned on and off rapidly.  Some take as many as 4 to 8 hours to switch on.  Operators back them down as far as they can go, but even when there is plenty of solar power during the day, natural gas plants are still running.

The state is rapidly building huge battery storage projects as an alternative to gas plants, but so far, they are still only a small fraction of what is needed.   Wind power is another part of the solution along with hydropower.  California imports some power from other states as well and, in fact, also exports power when there is excess.  But keeping the energy system balanced and stable is an ongoing challenge.

California is building huge amounts of solar, huge amounts of wind, and huge amounts of energy storage, which should get the state to at least 90% of the way to a clean grid.  It’s the last 5-10% that is much harder to accomplish before natural gas is no longer part of the energy system.

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California just ran on 100% renewable energy, but fossil fuels aren’t fading away yet

Photo, posted January 10, 2014, courtesy of F.G. via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Climate Change And Kenya’s Tana River Basin | Earth Wise

September 6, 2021 By EarthWise Leave a Comment

Climate change threatens biodiversity within the Tana River Basin

The Tana River is the longest river and most important waterway in Kenya.  It flows 620 miles from its headwaters in the Abderdare mountain range and Mount Kenya to the Indian Ocean.  The Tana River produces approximately half of the country’s electricity, and supplies Nairobi, the capital of Kenya, with 80% of its water.   

According to the United Nations Environment Programme, eight million people live along the Tana River, where coffee, tea, corn and other crops are grown for export, and fishing and cattle grazing help produce food for large portions of the country’s population. 

But the long-term ability of the river to provide these and other essential services is increasingly under threat due to many factors, including pollution, soil erosion, deforestation, and poor land use practices.   

Climate change is also complicating matters.  According to new research from the University of East Anglia, many species within the Tana River Basin will be unable to survive if global temperatures continue to rise at the current pace.  However, the study, which was recently published in the journal PLOS ONE, also found that many of these species could be saved if the world could meet the climate goals of the Paris Agreement. 

Globally, climate and land use changes are the two biggest threats to biodiversity.  According to researchers, 36% of the Tana River Basin has already been converted to agriculture. 

The research team says stronger commitments on climate change are needed from global leaders.  The climate and biodiversity crises can only be solved with urgent action to reduce global greenhouse gas emissions. 

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The impact of climate change on Kenya’s Tana river basin

Economics of Ecosystem Services of the Tana River Basin

Photo, posted August 19, 2010, courtesy of Luigi Guarino via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

The Importance Of Double-Cropping | Earth Wise

July 28, 2021 By EarthWise Leave a Comment

Double-cropping is important to feed a growing global population

In agriculture, double-cropping is the practice of growing two or more crops or commodities on the same piece of land in the same calendar year.  In Brazil, grain production has increased more than fourfold between 1980 and 2016.  The country now stands as the world’s largest exporter of soybeans and the second largest exporter of corn.  There were two primary drivers of this increase in food production: cropland expansion and double-cropping. 

Cropland expansion has long been recognized as a key driver behind the increase in Brazil’s agricultural output.  But cropland expansion is also a threat to biodiversity by driving habitat loss, deforestation, and an increase in carbon emissions. 

A new study recently published in the journal Nature Food quantified for the first time the impact that double-cropping had on helping Brazil achieve its tremendous growth in grain production.  The international research team examined data from three key agricultural regions in Brazil: the Centre-West, Southeast-South, and Matopiba region.  These three regions accounted for 79% of soybean production and 85% of  corn production in 2016. 

Soybean fields account for more than one third of Brazil’s cropland.  While the increase in soybean production was largely a result of cropland expansion, the increase in corn production was a result of double-cropping. 

Between 2003 and 2016, the study found that double-cropping in Brazil offset the equivalent of approximately 190 million acres of arable land for corn production. (This is more than twice the annual harvested area of corn in the United States).

Double-cropping represents a way to produce more food without clearing more land. 

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The impact of double-cropping

Photo, posted July 15, 2009, courtesy of Daniel Bauer via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Not Such Climate Champions | Earth Wise

April 5, 2021 By EarthWise Leave a Comment

Problems with the Paris Climate Accord

The goal of the Paris Climate Accord is to limit warming to below 2 degrees Celsius and if possible to stay as close as close to 1.5 degrees above pre-industrial levels.  Nations around the world have made commitments to drastically reduce their carbon dioxide emissions from the use of fossil fuels that are in large part responsible for the rising temperatures.

There are a number of countries that proudly claim to be leading the world in the fight against climate change but who are actually still a major part of the problem.  Among these are Norway, the UK, and Canada.

Norway powers its streetlamps with renewables, runs its public transportation system entirely by renewable energy, and leads the world in the adoption of electric cars.  Both the UK and Canada have set ambitious targets for emissions reductions leading to zero net emissions by 2050. 

The problem is that under the Paris Agreement, each country is only responsible for the greenhouse gas emissions produced within its territory.  That means that the UK, Canada, and Norway (like many other countries) don’t need to worry about the emissions caused by the burning of their oil, gas, and coal in other places around the world.

Norway’s annual domestic emissions reached about 53 million tons in 2017 according to its government.  The emissions from the oil and gas Norway sold abroad reached roughly 470 million tons in 2017.  Canada has huge proven oil reserves it is exploiting.

Canada, Norway, and the UK all plan to keep producing fossil fuels, investing in new fossil fuel projects, and explorations.  As long as this continues, these countries are not really climate champions; they are climate hypocrites.

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Norway, the UK and Canada are not climate champions. They are climate hypocrites

Photo, posted September 4, 2008, courtesy of Statkraft via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

More Plastic Pollution From The United States | Earth Wise

December 7, 2020 By EarthWise Leave a Comment

United States remains a top plastic polluter

A new study published in the journal Science Advances has revealed that the United States is contributing far more to coastal plastic pollution than was previously believed.  A previous study using 2010 data ranked the US 20th globally, in its contribution to ocean plastic pollution from mismanaged waste.  The new study ranks the U.S. third among the world’s countries.

The largest contributor to the discrepancy is that the earlier study did not account for plastic scrap exports.  Using plastic waste generation data from 2016 – which is the most recent global data available – the study’s authors calculated that more than half of all plastics collected for recycling in the US were shipped abroad.  This amounts to over 2 million tons.  Of this amount, some 88% went to countries struggling to effectively manage, recycle, or dispose of plastics, and between 15-25% was, in fact, low-value or contaminated, meaning that it was effectively unrecyclable.  When all of these factors were taken into account, the researchers estimated that a million tons of US-generated plastic waste ended up polluting the environment.  It just occurred beyond our own borders.

Overall, 2-3% of all plastic waste generated in the US – about a million tons – is either littered or illegally dumped into the domestic environment.  When this is combined with the exported waste, the US is responsible for more than 2 million tons of plastic waste being dumped into the environment.  About two-thirds of that ends up in coastal environments, where it is likely to enter the ocean by wind or through waterways.

The United States generates the most plastic waste of any country in the world.  Unfortunately, we have been operating under the illusion that we were doing a pretty good job of dealing with it.

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New Study Reveals United States a Top Source of Plastic Pollution in Coastal Environments

Photo, posted April 3, 2015, courtesy of Vaidehi Shah via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Electric Cars In Norway

February 18, 2019 By EarthWise Leave a Comment

Norway has long been a world leader in sales of electric vehicles.  The country only has 5.3 million people, so the absolute numbers cannot compete with those of large countries.  Despite that, it wasn’t until the first quarter of last year that Germany became the leader in number of electric cars sold in Europe and Germany has 15 times the population of Norway.

In percentage terms, almost one-third of all new cars sold in Norway last year ran on batteries.  The country offers generous subsidies for buyers who opt to go electric.  The government has set a goal of having all new cars be emission-free by 2025.  Last year, three of the top five most popular new car models were electric:  the Nissan Leaf, the BMW i3, and the Tesla Model X.

Tesla’s Model 3, which has shattered all records for electric car sales in the United States, has yet to go on sale in Norway.  When the car becomes available there in the next few months, it is expected to generate very high sales figures.

The 31% market share for electric cars in Norway far exceeds that of most other countries.  In the United States, for example, plug-in cars account for only about 2% of new car sales.  Only Hong Kong and Iceland are also currently above 5% electric.

Norway’s role in all of this is rather convoluted.  The country has copious hydroelectric power resources that provide virtually all of its electricity.  Thus, electric cars in Norway are truly clean, green vehicles.  On the other hand, Norway is the 15th largest producer of oil in the world and gets about 17% of its GDP from oil exports.  Tackling climate change must ultimately deal with the emissions Norway continues to export.

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Photo, posted October 3, 2018, courtesy of Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

More Fake Fish News

November 20, 2017 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2017/10/EW-11-20-17-More-Fake-Fish-News.mp3

There has been quite a bit of news in recent years about the mislabeling of fish sold in markets and restaurants.  One study a few years ago concluded that 1/3 of fish sold is not what it is labeled to be. Much of the practice is economic fraud:  substituting cheaper, easier-to-find fish for rarer, more valuable types.  For example, the study found that fish sold as red snapper was almost always not what it claimed to be.  But cheating paying customers is not the only problem associated with the misidentification of fish.

[Read more…] about More Fake Fish News

Outsourcing Our Emissions

October 9, 2015 By EarthWise

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https://earthwiseradio.org/wp-content/uploads/2015/10/EW-10-09-15-Outsourcing-Our-Emissions.mp3

The average American is responsible for one of the largest carbon footprints in the world. Some 37% of our carbon emissions is associated with electricity generation; 33% stems from transportation – largely personal automobiles. The remaining 30% is attributed to industry, residential use, and agriculture.

[Read more…] about Outsourcing Our Emissions

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