US President Joe Biden Wednesday said climate change was an 'existential threat' to humanity as he met with a small group of supporters in San Francisco, Report informs via Daily Mail.
Biden made his comments during the second day of a three-day fundraising swing through California.
On Wednesday evening he spoke with a high powered group of campaigners called the Climate Leaders Group in the drawing room of a Pacific Heights.
Biden has repeatedly warned that climate change and extreme weather are now the biggest threat to humanity.
A recent poll found that Democrats agree, but Republican see a far bigger threat from China and Iran, suggesting the country is polarized over even its nightmares.