Key points from article :
Economic recessions known to increase rates of self-harm.
Impact of climate change on suicides may be as significant.
Temperature rise of 1C results in 0.7% more suicides in the US.
Even larger rate rise (2.1%) in Mexico.
Rise seen irrespective of wealth and the usual climate of the area.
Suicide is a top 10–15 cause of death globally.
Other research links 2,000 suicides a year in India to climate change.
The study was published in Nature Climate Change journal.
