Of all CO2 damage modern humans have caused since our emergence about 250,000 years ago, we have caused 75% of it since 1970
In 2023, we have crossed six of nine boundaries within which human life on Earth will still be possible for future generations.
2009: 3 boundaries crossed
2015: 4
2023: 6
1. Biosphere integrity
2. Global warming
3. Nitrogen and phosphorous
4. Soil loss
5. Freshwater loss
6. Plastic pollution
We will soon cross:
7. Ocean acidification
https://www.science.org/doi/10.1126/sciadv.adh2458