About it writes RIA Novosti.

According to him, climate change is the main existential threat to humanity that people have ever faced, "including nuclear weapons."

Earlier, Paul Craig Roberts, an employee of the White House during the administration of Ronald Reagan, said that US foreign policy for more than 20 years has increased the risk of a nuclear conflict with Russia.

On January 26, former US President Donald Trump said that after the West supplies tanks to the Kyiv regime, the armed conflict could reach nuclear strikes.