Putting today’s CO2 level into proper historical perspective. This post from a website called Mashable does a good job of it, enhanced by an image of 65 million years worth of what we know about that history, as provided by the IPCC. The estimates for the last 20 million years are the most credible, so you can quickly see how extreme our current position is at 400-plus, heading no doubt for 450 and following that a fairly good bet for 500. Also note the amount of change in European summer temperatures since the 1880s, even before the extreme record set in this past year. The scientists who are quoted, like Matthew Lachniet, are veteran paleoclimatologists who have spent decades figuring out the actual climate conditions and sea level rises over those 20 million years. Whatever they have found out there–generally not very nice—should be considered within the range of real possibilities for repetition.
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How rural landscapes around the globe are changing because of climate change and technology (The Atlantic). This is a good review of the scale of transformation and where it is leading us, served up as a reminder to people who live in cities and may not even be aware of what is happening on the outside.
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Conservationists are desperate for an international agreement that will effectively protect biodiversity (The Guardian). They want it to carry the same weight as the Paris climate agreement. “But so far, this subject has received miserably little attention even though many scientists say it poses at least an equal threat to humanity…..The last two major biodiversity agreements – in 2002 and 2010 – have failed to stem the worst loss of life on Earth since the demise of the dinosaurs…..The world must thrash out a new deal for nature in the next two years or humanity could be the first species to document our own extinction.”
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Jane Goodall, also writing for The Guardian, tells about her own experience as a witness to environmental destruction and the disappearance of wildlife.
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Dramatic recent storms and flooding in Italy, Sicily and the city of Venice. In one episode, “Around 300,000 trees were flattened after winds swept through the Val d’Assa in the Asiago plateau…..felled like toothpicks.”
Carl