Three-quarters of climate change is man-made

Natural climate variability is unlikely to have contributed more than about one-quarter of the temperature rise observed in the past 60 years. At least 74 % of the observed warming is due to human activity.

Huber, M & Knutti, R. (2011). Anthropogenic and natural warming inferred from changes in Earth’s energy balance. Nature Geoscience. Available www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo1327.html

By | 2015-09-11T21:04:49+00:00 2011-12-06|