An expert analysis of global trends in low-carbon investment (Carbon Brief). This post has many key charts that illustrate the trends plus commentary from the IEA, highlighting those places where spending is inadequate.
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https://www.carbonbrief.org/iea-low-carbon-spending-must-more-than-double-to-meet-climate-goals?
Research shows that when CO2 levels are high trees grow faster but do not live as long (Phys.org). As a result there may be no net increase in carbon storage within a particular forest region. “We wanted to test the ‘live fast, die young’ hypothesis, and we’ve found that for trees in cold climates, it appears to be true.” (Forests may still be able to expand into new areas when climate warms, especially in the far north, and store more carbon that way.)
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A new study finds that undersides of Antarctic glaciers are exposed to year-around melting by warm ocean waters (Phys.org). This new information could mean that current models are underestimating the total melt-rate for the Totten Glacier and others like it. “The new measurements confirm that this part of East Antarctica is exposed to warm ocean waters that can drive rapid melt, with the potential to make a large contribution to future sea level rise.”
https://phys.org/news/2019-05-boosts-ocean-antarctic-ice-sheet.html
There is growing understanding about cold deep water formation and circulation in the world’s oceans (EurekAlert). Abrupt changes in climate have now been confirmed as a viable prospect. From the lead author, “As recently discovered by scientists…this global deep-water circulation has substantially weakened during the last century. If further weakening happened in the future, there may be unexpectedly broad implications not only on our atmospheric and ocean systems but also on Earth’s ecological systems and our society.”
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Plastic is a major contributor to climate change (Environmental Health News). The damage from plastic is not limited to waste that is carelessly discarded. “Each step in the life of a piece of plastic — production, transportation and managing waste — uses fossil fuels and emits greenhouse gases…..In 2019, producing and incinerating plastic will emit an estimated 850 million metric tons of greenhouse gases…..By 2050, the annual greenhouse gas emissions from plastics will reach an estimated 2.8 gigatons per year – the equivalent of about 615 coal plants.” Much more information in this story.
https://www.ehn.org/plastic-causes-climate-change-2637105746.html
Many new heat records set in northeastern Russia (Earther). One town hit 91F, another reached 4o degrees (F) above normal, a very rare number. That was last week. Today the area is still in the grip of anomalies as high as 20F.
Carl