Recent discussions among climate scientists highlight the accelerated global warming trend, attributed to factors like El Nino, aerosol reduction, and natural phenomena such as Tonga. Antarctica, traditionally a cooling factor, is now warming faster than the global average, potentially impacting global climate dynamics and sea-level rise. There are concerns about the effectiveness of carbon dioxide removal efforts and the potential moral hazard of lowering ambitions to reduce fossil fuel consumption.
Water shifting from Antarctica’s continental bedrock into the Southern Ocean contributed just 4% to global sea-level rise 20 years ago. Today its share is 12%, and it will rise relentlessly over time. But melting ice sheets do more than raise sea levels https://t.co/d2U16lpEvj
Advocates for rapid reduction of fossil fuels have expressed concern that carbon dioxide removal efforts could create a moral hazard by lowering ambition to cut oil and gas consumption, writes @Alice_C_Hill. https://t.co/EJ40uKyG3j
Recently Antarctica has begun warming at twice the global average, a sign that it’s starting to be a driver of global warming rather than a buffer. That suggests a profound shift for a region that has for millennia helped keep the rest of Earth cool https://t.co/voaQVQkZeu 👇
Here's another clue: Do they use pejorative, dismissive terms like "hopium" to mock those who advocate for urgent emissions reductions and to reinforce fossil fuel industry-friendly narratives of paralysis and hopelessness? https://t.co/EGjROJ70wr
Here's another clue: Do they use pejorative, dismissive terms like "hopium" to mock those who advocate for urgency emissions reductions and to reinforce fossil fuel industry-friendly narratives of paralysis and hopelessness? https://t.co/EGjROJ70wr
Planet is warming ~0.03C/year. Aerosols (see below) account for ~1/8 of that, i.e. ~0.004C/year. La Nina/El Nino transition led to ~0.5C warming during past year, 100 x as much warming as aerosols. It is absolutely absurd to attribute the warming spike to aerosols. https://t.co/q9b948p2Fk https://t.co/JQbWAJymWg
Who is talking straight with you on climate? Look at what they are emphasizing. Is it deep and immediate cuts in fossil fuel burning and carbon emissions? Or is it "geoengineering" and "carbon capture" and promises of new energy technology that simply kicks the can down the road?
The climate community suffered a credibility hit a decade ago when many fell victim to the misguided framing of the "faux pause" (see: https://t.co/mTszeN7Hbc). Seems some lessons are never learned (by some). Exaggeration does real harm to the cause of climate action. https://t.co/LWe1ppIvBe
Still a lot of interesting scientific debate about the causes, and their relative contribution, to the recent accelerated global warming. Robust El Nino and aerosol reduction both seem to be pretty important, Tonga probably plays a role, perhaps lesser than the other two… https://t.co/LA9MJSpfko
"Accelerated global warming is the first significant change of global warming rate since 1970. It is important because it confirms the futility of “net zero” hopium that serves as present energy policy ..." https://t.co/pQuLXutWPB https://t.co/AEbVxwGXzn
.@DrJamesEHansen et al are holding to their interpretation of the recent/current global temperature spike as driven by a mix of aerosol-pollution-cutting success and El Nino. This tussle at the leading/bleeding edge of unfolding science is normal, and important to resolve (and… https://t.co/B2tv6HPI24 https://t.co/4SVxzHaHoP
Refusing to concede that global warming is accelerating = climate denial. With a haymaker at his protégé, Hansen points out that some climate scientists -- with a large public following -- are now deniers to the new reality of accelerating global warming. https://t.co/ULXgWfm0jK https://t.co/W7khVAqvHh
Jump of global temperature in past year is a combination of aerosol-induced warming over a few years and a half-baked El Nino. There is no need for new climate physics to understand the warming. El Nino + next La Nina mean may approach 1.5°C. See Hopium - https://t.co/W3xo9hyMjA https://t.co/1cHjKw99i9
Despite appearances, Antarctica is not isolated from the rest of the world. For millennia the continent has acted like a massive refrigerator for Earth. As it defrosts, its waters will disproportionately raise sea levels in the northern hemisphere https://t.co/VvSz2SBrkE 👇