August 9, 2018
Blocking sunlight to cool the Earth will not save humanity’s farmland from climate change, according to a new study that dismisses a leading global warming prevention theory.
Researchers had speculated that injecting particles into the atmosphere would lower rising global temperatures enough to stop crops from dying out.
But scientists analysing the past effects of Earth-cooling volcanic eruptions showed that shielding the atmosphere damages crops as much as it helps them.
They concluded that any improvements to yield triggered by cooler temperatures would be negated by lower productivity due to reduced sunlight – making the process ineffective as a way of stopping global warming.
Some previous episodes of global cooling were caused by gases emitted during massive volcanic eruptions.
Some experts believe that humans could inject sulphate aerosols into the upper atmosphere in a similar way.
This article was posted: Thursday, August 9, 2018 at 6:26 am