EU Summit just agreed a “binding EU target of a net domestic reduction of at least 55% in greenhouse gas emissions by 2030” - so UK going somewhat further at 68%...

Earth has a fever in more ways than one. Some places averaged + 5-7 °C warmer than normal for the ENTIRE YEAR of 2020.

An enormous area of anomalous warmth plagued Arctic Siberia effectively all year but it was not just the Arctic where we saw record shattering warmth.

THREAD

Another way of looking at it... Very few cold blobs left. La Niña developed and shows up in the Pacific.

The climate is not changing uniformly, the Arctic is warming much faster than the rest of the world.

Data: @CopernicusEU and compares to 1981-2010 average.

JANUARY was joint hottest January globally on record according to NASA GISTEMP v4 (joint record with 2016).

Profound winter warmth for North America plus Europe and Asia.

FEBRUARY was second hottest on record (1st place is still held in 2016).

The winter 'warmth' in Europe and Asia was just insane.

MARCH: A cold Canada, Greenland and Svalbard... but obvious warmth still striking across the continents, particularly northern/central Asia.

This was the second hottest March on record (2016 still holds the record).

THOUGHT EXPERIMENT: Some 70% of people, depends how you ask, accept the global emergency. Climate system destabilisation is one aspect, declining biodiversity and increasing pollution is another. I ask: what would actually *break* if humanity responded decisively? 1/

Climate: a decisive response = cap on fossil fuel extraction and planned phase out. Fewer private car journeys, less electricity. Nothing would *break*. We still live and eat. There are alternatives and we can all cut back and share more. So what are we afraid of breaking? 2/

Pollution: reducing the above helps all that, cracking down on pollution and biodiversity loss will reduce materials consumption but changing and sharing we can still live on the planet. What would break? 3/

Most pollution and resource consumption is done by rich people. Billions of poor people live and thrive so the rich can too. Nothing will *break* there? 4/

Of course, a rapid reduction in resource consumption, less of most things and enough of the essentials for everyone will *break*something. Economic growth for one thing. But if that broke, what would *break*with it? 5/

A brilliant talk that punctures current discourse on climate ambition in Scotland, setting out what's really needed, by @KevinClimate for @ScotClimateCA

📽️ https://t.co/i02FtSkJT8 📽️

Well worth watching. Otherwise, here's a summary thread 👇
1/10

Want scientific assessment of what Scotland should do to achieve Paris Agreement temperature targets? Look to carbon budgets. See that a failure to rapidly reduce emissions will eat up the carbon budget in just a few years, leaving impossible burdens for future generations. 2/10

Are UK emissions down 45% in 30 years? Not when including emissions from aviation & shipping, and imports & exports – then they are only down 10%. Over three decades, we have had reductions of less than 0.5% per year. 3/10

Scotland’s average per person consumption emissions are still double the global average. Scotland’s consumption emissions have not meaningfully reduced in the last 20 years… 4/10

Principles of global equity and justice mean that Scotland’s fair slice of the global carbon budget is just a few hundred million tonnes of CO2, which is less than ten years of Scotland’s emissions at current levels. 5/10

As 2020 comes to a close, we're taking a look back at some of our best reporting on the environment.

The American landscape has become 48 times more toxic to insects since the 1990s, a shift largely fueled by rising use of neonicotinoid insecticides.

Banned in the EU, a sophisticated information war has kept these insecticides on the U.S. market.

Amid California's severe wildfires, grape growers in Sonoma County got exemptions to send in farmworkers who have few alternatives or options for support into fire evacuation zones.

With Trump's election, a small and previously marginalized group of toxics apologists suddenly took control over health and environmental regulations, ushering in higher profits for polluters and higher cancer rates for the American people.

Steven Donziger won a multibillion-dollar judgment against Chevron in Ecuador. The company sued him in New York — as of December, he has been under house arrest for over 500 days.

Thread on very strong inbound CA storm. A cold & clear morning will quickly give way to increasing clouds, NorCal valley rain & snow down to 1,500-2,000 ft (locally lower) later this PM. Current satellite imagery shows this strengthening system off the coast. (1/10) #CAwx

Tonight, a rapidly intensifying cold front will sweep across NorCal. This front will be unusually well defined, for a CA winter storm, and will replace an already cold airmass with...another cold airmass! (2/10) #CAwx

The cold frontal passage is expected to be quite dramatic across NorCal in the overnight hours. A convective "narrow cold frontal rainband" (NCFR) will likely develop, which could bring a period of torrential rain or snow to many areas, as well as possible lightning. (3/10) #CAwx

Extremely heavy precipitation is possible for a 30-60+ minute period when this NCFR feature moves ashore. Over an inch of rain could fall per hour in some spots. This portion of the event poses a high threat of debris flows in/near recently burned areas. (4/10) #CAwx

In addition to torrential rainfall, the cold front/NCFR will be accompanied by very strong wind gusts across much of NorCal. In fact, high-res models are suggesting potential for gusts of 60-70 mph even in lower elevation places. Widespread power outages possible. (5/10) #CAwx