A story about the world’s largest icefield outside of Greenland and Antarctica. Yukon’s enormous glaciers are steadily losing mass as temperatures warm and snowfall declines, causing a unique set of dramatic changes. The story and two related videos feature some fabulous photography.
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Imagery of Super Typhoon Yutu and the damage it did to the Northern Mariana Islands. The storm is now scheduled to make a second, but weaker, landfall in the Philippines.
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Damage to human health caused by air pollution is quantified by the World Health Organization. Worldwide totals are shown to be worse than the effects of smoking. This post in The Guardian maps out the locations where the problem is most severe. It is noted that overcoming the main sources of the problem would also help to resolve some of the primary causes of climate change, which is no surprise.
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The preservation and restoration of forests is critical for stopping the emissions that cause climate change (Sierra Club magazine). Burning fossil fuels only covers about two-thirds of the problem; plenty of statistics have been gathered showing that the rest is all about protecting the natural world. (My last Climate Letter told about the studies of Bill Ruddiman’s group demonstrating that clearing forests and other changes to the land accounted for as much as one degree of global warming over thousands of years prior to the Industrial Revolution. The same kind of effect is no less true today, with probably less room for error.)
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Canada is experiencing a frightening loss of trees because of climate change (CBC Radio). “About 40 per cent of Canada is covered in trees. In the North, two factors in particular are leading to forest decline…..Low-lying trees like black spruce are falling over because of too much moisture at their roots due to melting permafrost…..On drier, gravelly slopes like the Rocky Mountains, trees are still standing — but they are browning…..These sites are more exposed and so the warmer, drier air conditions are drying out leaves.”
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Brazil’s newly-elected president raises fears that the Amazon rainforest will suffer a rising rate of losses. “Bolsonaro has courted the mining and farming lobbies, pledging to roll back environmental protections and gut federal enforcement.” There will be intense pressures from abroad that try to hold him back, but this is a particularly dangerous situation with respect to stabilizing the climate well beyond Brazil.
Carl