tingilinde

what if the entire tropics were reforested?

Not the climate win some expect.  

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The reason is that other parts of the Earth system counteract the effect of the new tree growth. If the tropics were reforested, our model predicts that the oceans, soil and vegetation would absorb less carbon dioxide. By the end of the century, tropical trees would take up an extra 124 billion tonnes of carbon (or 124 gigatonnes, Gt), but tropical soils would take up 83 Gt less carbon, as the turnover of dead plants is much slower in forests compared with grasses and crops that die annually, meaning lower carbon inputs in forest soils and lower carbon storage.

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We need to stop emitting green house gases.

 

 

"glacier blood"

I've seen this in Montana and in Yoho Park in Canada - we called it pink snow.

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Eric Maréchal, a coordinator at the ALPALGA project, told Live Science that people who frequent the Alps are seeing more red snow, and he recalled eyeing huge swaths of “glacier blood” on a 2019 hike. “Everywhere I put my eyes, it was red,” he said. “We walked all day, seeing surfaces stained in red.”

Scientists believe that rising levels of carbon dioxide may be fueling the growth of the photosynthesizing snow-borne microalgae. Likewise, changes in wind and snowfall may be delivering additional nutrients to algae, leading to the spread of “glacier blood.” However, researchers have yet to quantify changes in algae over time.

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line 3

Moving more tar sand oil through America - the sort-of sequel to Keystone.

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And that’s what puts the Biden administration in an impossible place now. Enbridge wants to replace Line 3, which runs from Canada’s tar sands deposits in Alberta across Minnesota to Superior, Wis., with a pipeline that follows a new route and would carry twice as much crude. It would carry almost as much of the same heavy crude oil as planned for the Keystone XL pipeline — crude that is among the most carbon-heavy petroleum on the planet.

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what can possibly go wrong

Drought in the West

 

 

drone v nature

A drone pilot crashes a drone into a wildlife preserve doing serious damage.

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Every April, thousands of elegant terns migrating from Central and South America nest in the sands of the Bolsa Chica Ecological Reserve, one of the last remaining protected coastal wetlands in Southern California.

This year, however, their refuge was no sanctuary. On May 13, a drone crash-landed on their nesting ground, scaring off about 2,500 of the terns. Left behind were about 1,500 eggs, none of which were viable after they were abandoned.

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wrangel island

This started out wondering where the highest density of polar bears was ..  it turns out the place is interesting.

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This remote Arctic island is believed to have been the final place on Earth to support woolly mammoths as an isolated population until their extinction about 2000 BC, which makes them the most recent surviving population known to science.[8][13][14][15] Initially, it was assumed that this was a specific dwarf variant of the species originating from Siberia. However, after further evaluation, these Wrangel island mammoths are no longer considered to have been dwarves.[16] The presence of modern humans using advanced hunting and survival skills probably hastened their demise on this frozen isle, which until recently was ice bound for most years with infrequent breaks of clear water in some Arctic summers. A mirror development can be found with the dwarf elephant on Malta, originating from the European species.

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the toll of heat

Heat related deaths boosted by global warming are increasing dramatically.

 

 

from here to there

Getting animals safely across man-made obstacles.

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Research shows that, across the country, there are one to two million collisions between vehicles and large animals each year. These accidents cause more than 26,000 human injuries and about 200 human deaths.

Funding for crossings is a challenge, but that may get easier, too: A bipartisan Senate version of the transportation bill being hammered out in Congress includes $350 million for wildlife crossings and corridors.

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a night out

Exploring the English countryside looking for signs of its health - a 20 minute podcast.

 

the impact of air pollution on storms

Fires can create lightning ... and also increase the intensity of rainfall

the paper from Geophysical Research Letters