Developing nations to study ways to dim sunshine, slow warming

Developing nations to study ways to dim sunshine, slow warming

Scientists in developing nations plan to step up research into dimming sunshine to curb climate change, hoping to judge if a man-made chemical sunshade would be less risky than a harmful rise in global temperatures.


The existential trap of solar geoengineering

With so much at risk from climate change, scientists in developing nations understandably argue they must be at the table as these technologies are explored for their benefits and costs (see commentary in Nature). This story from Reuters explores an initiative, the Solar Radiation Management Governance Initiative (SRMGI.org) that is facilitating developing nation engagement in assessing solar geoengineering.

Let's hope their deliberations encompass the existential threat these technologies pose: One they are employed, they give excuses to avoid reducing carbon emissions. Yet once they are deployed, what happens if major societal disruptions bring them to a halt (for example, if financial collapse means there are no longer resources to pay for them)? The carbon emissions that were permitted to enter the atmosphere because of the promise of solar geoengineering will likely rapidly assert their impact on global temperatures. Any assessment of solar geoengineering must examine this endgame.

There are other obvious risks, most especially that solar geoengineering to lessen temperature increases does nothing to prevent further accumulation of carbon dioxide in the oceans and fresh water bodies, exacerbating acidification.

See the full story in Reuters.

Carbon pollution pushed environmental breakdown to record levels in 2021

People have warped the climate so much that in 2021 four critical measures of planetary health broke records. Oceans grew hotter, higher and more acidic than ever documented, said the World Meteorological Organization.
Sunrise in the woods

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New Mexico wildfire 2022
USFS/Calf Canyon-Hermits Peak/Facebook

Governor: Fire could destroy over 1,000 New Mexico homes

In a news conference Tuesday, Lujan Grisham acknowledged she did not have hard figures — most recent estimates had put losses of homes at 366 — but added “given the nature of this fire … I don’t think it’s an exaggeration.”

orphaned oil well grants for Louisiana
Louisiana DNR

Louisiana enacts new orphan oil well law to fetch $200 million in federal money

Legislation that positions Louisiana to receive an estimated $200 million in federal grants to fix orphan oil wells became law Tuesday.

Artists organize to offer new visions for tackling climate change

Recently, the Pew Research Center found that over 66 per cent of Canadians are not only concerned about the climate crisis, but willing to alter how they live to help fight it.

Pennsylvania is vying for a clean energy hub, but some worry it still relies on fossil fuels

Pennsylvania officials want to bring more energy and manufacturing jobs to the state by building a Clean Hydrogen Hub in the region.

'Flash droughts' are Midwest's next big climate threat

Fast-moving droughts are developing more and more quickly as climate change pushes temperatures to new extremes.

Do airline offset programs really reduce your carbon footprint?

Carbon credits could eventually play an important role in fighting climate change, but right now a few dollars’ worth won’t change much.
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