"Plunge is far faster than in Arctic and may lead to more global heating, say scientists" 'Precipitous' fall i...
Monday, September 16, 2019
Despite no specific evidence of Iranian involvement, the US treat Yemen’s Houthi rebels as tame creatures of Tehran
The claim by US officials that Iran was responsible for the oilfields attack came with no marshalled public evidence. Photograph: Reuters
By Patrick Wintour
Saudi attack dampens faint chance of a Trump-Iran meeting
The US secretary of state Mike Pompeo’s bald claim this weekend that Iran was responsible for the attack on the Saudi oilfields came with no marshalled public evidence, but dampens any likelihood that Donald Trump will countenance a meeting with Tehran in the near future or press ahead with tentative peace talks with Houthi rebels in Oman.
Lindsey Graham, one of Trump’s foreign policy supporters in the Senate, was clear talks with Iran are now off the agenda saying: “The Iranian regime is not interested in peace – they’re pursuing nuclear weapons and regional dominance.”
For the moment Europe is not attributing blame. Britain in its statement condemning the attack did not explicitly blame Iran, but called on the Houthis to desist.
HOUTHI DRONES STRIKE OIL PLANTS
Friday, August 30, 2019
A 2007 modeling study found that the loss of around 40% of the forest would reduce rainfall and extend the dry season in major parts of the Amazonia region, converting much of the eastern part into grassy plains where few trees can thrive.
We aren’t terrified enough about losing the Amazon
by James Temple
With fires raging in the Brazilian Amazon this year, media reports have resurfaced a scary scenario known as “the Amazon dieback.”
The idea is that a certain level of deforestation will push the world’s largest rainforest to a tipping point, where spiraling feedback effects convert much of the forest into savannah. The massive greenhouse gas sponge, which holds around 17% of the world’s carbon trapped in vegetation on land, would suddenly become a major source of it.
That would be a monumental catastrophe. But how real of a danger is it?
Well, scientists can’t exactly say. Some models show the phenomenon, some don’t. Where some researchers detect a tipping point in the data—which technically means it would continue on its own even if the forces that first drove it fade away—others see merely progressive deterioration that could be halted. Still other studies have found such a phenomenon would most likely convert rainforest into seasonal forest, rather than savannah.
So what should we do in the face of this kind of scientific uncertainty? Like other climate tipping points, which are unpredictable and essentially irreversible once reached, we should err on the side of caution.
“Even if it’s a remote possibility, we cannot afford to ignore it,” says Jonathan Foley, executive director of Project Drawdown, a research group focused on decarbonization. “It would be absolutely catastrophic to the Earth’s carbon cycle, water cycle, climate, and biodiversity—not to mention the people who live there.”
Monday, August 26, 2019
Friday, August 23, 2019
In climate science there has been a tension between the drive towards consensus to support policy making versus exploratory speculation and research that pushes forward the knowledge frontier
Climate Change: What’s the Worst Case?
By Judith Curry
THE PERMIAN EXTINCTION
Thursday, August 22, 2019
Members cited concerns over changing party rules and opening the door for a flood of single-issue events
The Democratic National Committee has rejected mounting calls for a party-sponsored debate on the climate crisis, voting down a resolution that would have dedicated one of the 12 Democratic debates entirely to the issue.
Calls for a DNC-sanctioned climate debate have been building for months. In poll after poll, climate has been one of the most important issues to likely Democratic voters in the 2020 presidential election. But little time has been devoted to the topic in debates to date: a scant 15 minutes in the first set of debates, and just over 20 in the most recent two.
Party delegates are meeting this week in San Francisco to hear from 2020 candidates, hold fundraising events and tend to party business. But one of the gathering’s most urgent agenda items was to vote on competing resolutions to determine whether or not such an event would go ahead.
A committee rejected the resolution in a 17-to-8 vote. Photograph: Guy Bell/REX/Shutterstock
IMAGINE DNC ARE NOW DENIERS?
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