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Mar 5 • 4 tweets • 2 min read
worth knowing: scientists anticipate 50% - 75% of the world's people along with millions of precious species like pollinators that are crucial for decent human survival will be exposed to periods of life-threatening climatic conditions within decades 🧵
“half (RCP2.6) to three-quarters (RCP8.5) of human population could be exposed to periods of life-threatening climatic conditions .. by 2100.”

This economy will lead to 1.6C-1.7C by the 2030s/40s wrecking the oceans.

Where are the system change headlines?carbonbrief.org/in-depth-qa-th…
'percentage of species at high risk of extinction

9%-14% at 1.5C
10%-18% at 2C
12%-29% at 3C
13%-39% at 4C

Among groups containing the greatest numbers of species at high risk of extinction are invertebrates (especially pollinators)..and flowering plants'carbonbrief.org/scientists-rea…
It's no good talking about 2100.

Industrial capitalism if kept will definitely taking us to catastrophic 1.6- 1.7°C (end of corals; ocean extinctions) by the 2030s/40s, and more likely 2- 2.4°C.

So where are the system change headlines we need?

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More from @ClimateBen

Ben See Profile picture
Mar 5
Global warming’s threat to the food supply is seen as far more pressing by many scientists than the melting glaciers and rising sea levels that occasionally grab the headlines. 🧵
1. Increasingly extreme events exposing millions to acute food insecurity, particularly in Africa, Asia, Central and South America, on small islands and in the Arctic.

'considerably more evidence of projected risks..causing sudden food production losses..'carbonbrief.org/scientists-rea…
2.

Billions of people could suffer extraordinary misery and/or death if political/economic systems don't allow them to be protected as crop yields are reduced.

We're years away from shocking reductions.

Where are the system change headlines?
Read 14 tweets
Ben See Profile picture
Mar 4
We know Arctic & Antarctic ice is going rapidly now at 1.2°C.

We know 1.4°C-1.6°C means ocean & land extinctions and threatens billions of people's lives.

We know the current economic system will lead to 1.6°C by between 2027 and 2050.

Where are the system change headlines? 🧵
1. Scientists say with 'high confidence that “west-, central- and east Africa, south Asia, Central and South America, small island developing states and the Arctic” are “hotspots of high human vulnerability”.

1.4C-1.6C? A grave threat to >2 billion people.carbonbrief.org/in-depth-qa-th…
2. 'If temperatures rise to between 1.7 and 1.8C above the 1850s level, then the report states that half the human population could be exposed to periods of life-threatening climatic conditions arising from heat and humidity.'

BBC? Silent on system change.bbc.com/news/science-e…
Read 6 tweets
Ben See Profile picture
Mar 3
Climate scientists don't think this economic system will keep us below horrific 1.5-1.7°C of global warming.

We're heading for 2°C by 2045.

Even if we get on a lower emissions path we exceed 1.8°C by 2050/2090, and we're nowhere near it.

Where are the system change headlines?
1.6/1.7C by 2050 even on profoundly unlikely lower emissions scenarios.

Ever hear scientists saying we'll be at 1.4C in 2090 with this economy? No chance.

1.5-1.7C is too much for the oceans, too much for our fragmented, suffering forests.

This economy cannot help or protect.
1.4°C-1.5°C is too much for tropical corals and many species to cope with.

1.6°C-1.7°C in a world of logging and deforestation is unthinkable.

Read 8 tweets
Ben See Profile picture
Mar 2
BREAKING: UN Secretary General says many of Earth's ecosystems "are at the point of no return NOW" 🧵
1. Economic growth is taking us to 1.6-2.4°C by 2050.

"places where people live and work may cease to exist.. ecosystems and species that we've all grown up with and that are central to our cultures and inform our languages may disappear"

See video clip:bbc.com/news/science-e…
2. Ecosystem collapse is caused by so many elements of today's destructive growth economy. It's not just abrupt climate change.

We can act to protect species and everybody, but it will take profound system change.

We must focus on this.

Media?

Silent.
Read 5 tweets
Ben See Profile picture
Mar 1
🧵icymi

Intergovernmental Panel on Climate Change: any further delay in concerted global action will miss a brief and rapidly closing window to secure a liveable future

International Energy Agency: CO2 emissions are set to hit record levels in 2023 and there's no peak in sight
1. 'global emissions are set to increase almost 14 per cent over the current decade. That spells catastrophe'

Economic growth is a root problem, and yet the UN net zero 2050 plan is based on more growth. news.un.org/en/story/2022/…
2. Corporations and governments are setting up new fossil fuel production.

The US and Canada amongst others are the big oil and gas producers of the 2020s.

We can and must take action to protect everyone and all species. But we'll have to face reality.
cnbc.com/2021/07/20/co2…
Read 9 tweets
Ben See Profile picture
Feb 11
Do climate and energy experts often ignore the fact we're in a mass extinction that's now accelerating during 21st century capitalism because it disrupts their visions of 'solutions'?

THREAD. 🧵
1. We're in a mass extinction due to habitat destruction, pollution, and many other factors including abrupt climate change: 20% (30-50%?) of species face extinction by 2050, and 75% of mammals as early as 2300.

We don't know which species can survive 1.75°C-2.75°C by the 2040s.
2. It seems many climate and energy experts say climate change won't lead to human extinction within decades or centuries, without acknowledging that extinction threats to species come from a range of activities likely to be maintained in a 'green' growth, 'clean' energy economy.
Read 14 tweets

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