As the Monsoon and Climate Shift, India Faces Worsening Floods (Yale e360). “New studies show that extreme precipitation events are on the rise in large parts of India, especially multi-day deluges that lead to large-scale floods.” This story has a complete accounting of what is happening.
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The Arctic is browning (University of Sheffield). A professor who studies Arctic ecosystems offers his own new observations and insights into what it means for the global climate system. “The fact that extreme events in the Arctic are killing tundra plants is a big concern because those damaged ecosystems are less able to take up CO2 to help combat climate change, and less able to provide habitat and food for the animals that rely on a healthy tundra ecosystems for survival.”
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A new UN report covering oceans, polar regions and glaciers will raise new alarms (WWF). Comments from WWF scientists who are familiar with its contents, for example: “We already see accelerated impacts of climate change across the globe and are at a point where we simply cannot ignore the warning signs from our planet any longer. No matter what any sceptic might say, the risks we face in the future are real and, if left unchecked will have disastrous consequences for millions of people and for the planet’s most vulnerable ecosystems.”
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New climate models that show higher than the most-widely-understood risk of warming are apparently being recognized by the UN (Phys.org). “Greenhouse gases thrust into the atmosphere by burning fossil fuels are warming Earth’s surface more quickly than previously understood, according to new climate models set to replace those used in current UN projections, scientists said Tuesday.” If true, this is really big news. The model results were reported some weeks ago, but how would the UN and IPCC react? All of the normal, and very conservative, assumptions about climate change, along with the carbon budgets, would be seriously upended by acceptance. How could you then go about explaining this to government policymakers, or to the general public, which have had so much trouble accepting and acting upon the weaker forecasts we have long been accustomed to getting? “The new calculations also suggest the Paris Agreement goals of capping global warming at “well below” two degrees, and 1.5C if possible, will be harder to reach, the scientists said…..”With our two models, we see that the scenario known as SSP1 2.6—which normally allows us to stay under 2C—doesn’t quite get us there.” Intense and much more urgent changes in the overall discussion may soon be coming, with a whole new set of numbers to consider.
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A new report explains why it is so difficult to stop deforestation of the Amazon (The Guardian). “Deforestation in the Brazilian Amazon is a lucrative business largely driven by criminal networks that threaten and attack government officials, forest defenders and indigenous people who try to stop them, according to a new report by Human Rights Watch…..As long as you have this level of violence, lawlessness and impunity for the crimes committed by these criminal groups it will be impossible for Brazil to rein in deforestation…..These criminal networks will attack anyone who stands in their way.”
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A new technology offers hope for emissions-free cement production (Massachusetts Institute of Technology). Cement accounts for about 8 percent of all greenhouse gas emissions. “A team of researchers at MIT has come up with a new way of manufacturing the material that could eliminate these emissions altogether, and could even make some other useful products in the process…..the technology is simple and could, in principle, be easily scaled up.” The task of gaining acceptance and penetrating the huge industrial base is now being strategized.
Carl