Imagine an existential crisis. A major international conference.
The EU president isn't attending.
The US president isn't.
China's president isn't.
India's president isn't.
France's president isn't.
Germany's chancellor isn't.
Brazil's president isn't.
Russia's president isn't.
South Africa's president isn't.
Canada's PM isn't.
Japan's PM isn't.
Australia's PM isn't.
...
I've been an Earth system scientist for 30 years now. We used to say we have to turn the corner by 2020.