
The UK is now more than halfway (50.4%) to achieving a net zero carbon economy, which means it has reduced its national emissions significantly compared to 1990.
We should even celebrate that 0.4%. Why? Because every tonne of carbon saved from the atmosphere and every fraction of a degree celsius of warming avoided saves lives and leaves more life-sustaining ecosystems intact for our children and grandchildren.
It also reduces the risk of triggering irreversible, devastating tipping points in the Earth system. We absolutely do not want to go there. Though, it may already be too late to save 90% of warm-water coral reefs, on which hundreds of millions of people depend for food and protection from storms.
Luckily, tipping points can also work in our favour. Researchers like us call them positive tipping points, which kickstart irreversible, self-propelling change towards a more sustainable future.