# Paleocene–Eocene Thermal Maximum

> rapid (in geological terms) global warming, profound changes in ecosystems, and major perturbations in the carbon cycle which started about 55.0 million years ago

**Wikidata**: [Q55826](https://www.wikidata.org/wiki/Q55826)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Paleocene–Eocene_thermal_maximum)  
**Source**: https://4ort.xyz/entity/paleocene-eocene-thermal-maximum


## References

1. Freebase Data Dumps. 2013
2. BBC Things
3. Quora