Climate 411

Heatwaves to become more deadly and increase global inequality

A new study shows that heatwaves will worsen in the future and that the most vulnerable populations will be hit the hardest

Source: Flickr/
Rupert Ganzer

Human-caused climate change has already increased the frequency and severity of heatwaves across the globe, and new research shows that heatwaves will get even worse as the planet warms further.

Scientists have found that climate change played a major role in recent heatwaves: the chance of extreme heat at the levels seen in northern Europe in 2018 has doubled; the “Lucifer” heatwave in Europe’s Mediterranean region during summer of 2017 is four times more likely to occur; and the scorching 2016-2017 summer in New South Wales, Australia, was made at least 50 times more likely.

The new study, published on January 11th, 2019 in Nature Communications, shows the growing threat of heatwaves in a warming world, especially for less developed nations. In fact, the researchers found that less developed countries will likely be more affected by heatwaves in a 1.5°C (2.7°F) warmer world than developed countries will be in a 2°C (3.6°F) warmer world.

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Also posted in Extreme Weather, Health, News / Comments are closed

Year in Review: 18 numbers that tell 2018’s story of the environment, health, and climate

2018 brought with it a torrent of stories that now shape the world we live in and will shape 2019 and years to come.

From a disgraced EPA Administrator, to urgent reports on climate change, the year showed how far we’ve come and how much work remains—especially as President Trump and his administration continue to assault safeguards and deny the reality of a warming world.

Here, we recap the 18 numbers that encapsulate the year that was, and what we’ll be keeping a close eye on in the year to come.

  1. Public Health Threat #1: Acting EPA Administrator Andrew Wheeler. Former coal lobbyist Wheeler took the reins after the end of Scott Pruitt’s destructive tenure, and picked up right where Pruitt left off. Since then, Wheeler has targeted several foundational health and environmental safeguards. It’s now expected that Wheeler will be nominated for the post permanently. Keep reading to see how dangerous that could be to the American people and our planet.
  2. Two mothers who lost their sons because of exposure to methylene chloride, a dangerous chemical in common paint strippers, met with Pruitt and members of Congress from both parties. These moms asked EPA to support a ban on consumer and most commercial uses of methylene chloride. Over 6 months ago, Pruitt said he’d do so, but no action has been taken since.
  3. As for other chemicals the Trump EPA is flouting 2016’s Toxic Substance Control Act amendments, allowing potentially dangerous chemicals into the marketplace and consumers’ homes. Here are three examples.
  4. Wheeler is proposing to gut the EPA methane rules, a move that could result in more than 400,000 tons of additional potent methane, even though some leading companies have asked EPA to regulate methane emissions from oil and gas.
  5. Check out this list of five states that took bold action on climate change this year, showing the kinds of common-sense, economic solutions that can be implemented at scale while protecting people, our economy and our environment.
  6. According to the World Health Organization air pollution kills an estimated 600,000 children every year under the age of 15 and accounts for almost 1 in 10 deaths in children under five. The report found links between air pollution and childhood cancers, asthma, pneumonia and other respiratory infections, making it one of the leading threats to child health.
  7. It’s not all doom and gloom. Prompted by the urgency to act on climate and the advancement of affordable, renewable energy technologies, we’ve seen seven signs that the global energy economy is in transition.
  8. Eight hurricanes formed in Atlantic waters this year, two of which—Hurricanes Florence and Michael—devastated states across the Mid-Atlantic and Southeast. These kinds of super storms are becoming more powerful—and more destructive—due to warmer water, higher seas, shifting weather patterns and increased moisture in the air.
  9. On the other side of the country, California saw wildfires ravage the state, destroying entire towns and killing scores. In total, the fires are expected to cost insurers more than $9 billion and signal the kind of climate dangers the world could face more regularly if greenhouse gases are allowed to pollute our air unchecked.
  10. Might that have something to do with the fact that fossil fuel industries outspent clean energy advocates on climate lobbying by a startling 10 to 1?
  11. By EPA’s own calculations, the Mercury and Air Toxic Standards prevent as many as 11,000 deaths per year, yet the Administration reportedly wants to undercut the rule anyway, with a proposal expected imminently.
  12. A concentrated effort by the oil industry to fight back against clean car standards resulted in more than a quarter of the 12,000 “public” comments submitted to the federal register reflecting the language written by a pro-industry group. Marathon Petroleum, the country’s largest refiner, lobbyists for Exxon Mobil, Chevron, and Phillips 66, joined a network funded by the Koch Brothers network in a massive effort to fight standards that would reduce pollution from vehicles and save Americans money at the gas pump.
  13. The National Climate Assessment, issued by 13 federal agencies, sounded the alarm on the impacts America stands to suffer from climate change, yet went largely ignored by the Trump Administration, which has chosen to side with special interests and industry allies.
  14. 414 investors across the globe—with $31 trillion under management—called for governments to take serious steps to curb climate pollution, citing the “ambition gap” between government commitments and what is needed to sufficiently prevent the world from reaching warming of 2 degrees Celsius above pre-industrial levels.
  15. 2015 saw the adoption of the landmark Paris Agreement, setting nations on a hopeful path toward emissions reduction. Since then, the leadership once shown by America in critical climate talks has been abdicated, left vacant by an administration that chooses to cover its ears and place the world’s children and grandchildren at risk. This year’s climate summit, COP24, saw the creation of a “rule book” to implement the Paris agreement, but also showed that much more needs to be done.
  16. A letter sent by coal baron Robert E. Murray to Vice President Mike Pence listed 16 wishes that the administration has largely taken up as policy. Several among them have led the administration to foolishly attempt to prop up the coal industry despite economic signals diminishing coal’s viability, not to mention its severe health and environmental effects.
  17. After 17 months of countless scandals and reckless attempts to assault bedrock environmental protections, Scott Pruitt resigned his post as EPA Administrator. This list could extend dozens of items longer if we were to count Pruitt’s many offenses. American families and children will not miss him.
  18. A cheery and hopeful note as we head toward the new year: 2018’s midterms saw a wave of pro-environment and climate candidates elected to office across the country. Those candidates-elect—ranging from governors and representatives, to mayors and councilwomen—are leading a charge toward ambitious climate action.

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Also posted in Basic Science of Global Warming, Cars and Pollution, Clean Air Act, Clean Power Plan, Energy, Greenhouse Gas Emissions, Health, Policy / Comments are closed

Seis aportes del nuevo informe sobre el clima

Co-escrito por Ilissa Ocko.

Los efectos tangibles del cambio climático provocado por el hombre son cada vez más visibles. Un estudio reciente, encontró por ejemplo, que la temporada de huracanes 2017 fue más intensa como resultado de nuestro clima cambiante. Limitar los niveles de calentamiento global es esencial para frenar los impactos futuros del cambio climático, pero ¿en qué medida un calentamiento adicional de 0,5 ° C cambia nuestro mundo

El informe especial emitido anoche por el Panel Intergubernamental sobre el Cambio Climático (IPCC), considera los impactos del calentamiento global de 1.5 ° C por encima de los niveles preindustriales, en contraste con los 2 ° C, y cómo puede alcanzarse este objetivo de calentamiento inferior. El informe fue escrito por cientos de científicos provenientes de 40 países diferentes y basado en investigaciones de miles de estudios científicos

Aquí hay 6 puntos clave del nuevo informe del IPCC:

  1. Cuando se trata de calentamiento, 1.5 ° C es mucho más seguro que 2 ° C … pero aún más riesgoso que el presente.

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Also posted in Basic Science of Global Warming, Setting the Facts Straight / Comments are closed

Six takeaways from the new climate report

Co-authored by Ilissa Ocko. Haz click aquí para leer en español.

The tangible effects of human-induced climate change are increasingly visible. A recent study, for example, found that the 2017 hurricane season was more intense as a result of our changing climate. Limiting global warming levels is essential to curbing the future impacts of climate change, but how much does an additional half a degree Celsius warming change our world?

The special report issued last night by the Intergovernmental Panel on Climate Change (IPCC) considers the impacts of 1.5 °C global warming above preindustrial levels, in contrast to 2 °C, and how this lower warming target can be achieved.The report was written by hundreds of scientists hailing from 40 different countries and based on research from thousands of scientific studies.

Here are 6 key takeaways from the new IPCC report:

1. When it comes to warming, 1.5 °C is much safer than 2 °C…but still riskier than the present.

Limiting warming to 1.5 °C compared to 2 °C has clear and considerable benefits, such as significantly reducing the risks of water scarcity, ill-health, food insecurity, flood and drought, extreme heat, tropical cyclones, biodiversity loss, and sea level rise. Read More »

Also posted in Basic Science of Global Warming, Extreme Weather, Greenhouse Gas Emissions, Setting the Facts Straight / Read 2 Responses

Climate smart rice farming: Integrated co-management of fertilizers with mild-intermittent flooding

This blog was co-authored by Richie Ahuja, Tapan Adhya & Kritee

By applying climate smart farming practices, small-holder farming communities in India can become more climate resilient, as well as improve yield and profit. But as recently revealed by Environmental Defense Fund, rice farmers using the well intentioned current prescribed irrigation practice – intermittent flooding – to improve mitigation and adaptation could be contributing to elevated emissions of nitrous oxide (N2O), a powerful, long-lived greenhouse gas.

In collaboration with the Fair Climate Network and a coalition of grassroots NGOs across India, we worked directly with small-holder farmers across 16,000 acres in five states between 2012 and 2016 to perform high frequency monitoring of methane (CH4) & N2O emissions for both business-as-usual and potential climate smart farming practices.

Photo by Tamil Selvi. A farmer learning to measure water levels in the field using a field water tube

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Also posted in Agriculture, Greenhouse Gas Emissions / Comments are closed

Global anthropogenic climate impacts must include nitrous oxide emissions from rice fields

This blog was co-authored by Kritee, Jeremy Proville, Terry Loecke, Richie Ahuja

Rice is a critical global crop: it provides livelihood to 150 million households and is a staple for half of humanity. However, it uses 11% of arable land and a third of irrigation water. In addition, continuously flooded rice fields are like wetlands and known to produce about 12% of total anthropogenic methane (CH4), a powerful short-lived greenhouse gas. Despite being one of the few crops whose climate impacts have been deeply studied over two decades, the potential of large emissions of nitrous oxide (N2O), a long-lived greenhouse gas, from rice cultivation was surprisingly missed until recently.

Given that the United Nations Framework Convention on Climate Change (UNFCCC) negotiators working on agricultural mitigation are set to review the issue of water and nitrogen management in early 2019, it is crucial that the climate impacts of rice cultivation are determined and lowered over both the long- and short-term.

Photo by Rakesh Tiwari: Women harvesting seedlings for rice nursery

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Also posted in Agriculture, Greenhouse Gas Emissions / Comments are closed