Scientists discover new ‘human fingerprint’ on global drought patterns


Human-caused climate change has “intensified” patterns of extreme rainfall and drought across the globe, a new study finds.

There is a detectable “human fingerprint” on decreasing rainfall over the US, central Asia and southern Africa, according to the results. It is also detectable on increasing rainfall in the Sahel region of Africa, India and the Caribbean.

In addition to increasing greenhouse gas emissions, aerosols released by human pollution and large volcanic eruptions have also been “major contributing agents” to global drought patterns through the industrial era, the research says.

The findings “tackle the problem of identifying the human influence of drought patterns across the world”, a climate scientist tells Carbon Brief.

Read more >