Combo photo shows U.S. Democratic presidential nominee Joe Biden (L) and U.S. President Donald Trump attending their respective events on different occasions. (Xinhua)

"When Donald Trump thinks about climate change, he thinks hoax. When I think about climate change I think jobs," says Biden.

WASHINGTON, Sept. 14  -- U.S. Democratic presidential nominee Joe Biden on Monday criticized President Donald Trump's denial of climate change, calling the latter a "climate arsonist" as he addressed an audience in the state of Delaware about the ongoing wildfire sweeping the country's west coast.

Biden, the former U.S. vice president, mentioned in his speech a broad range of natural disasters, including the wildfires raging across the western states like California, Oregon and Washington, the flooding hitting the Midwest, and the hurricane battling the Southeast, blaming Trump's inaction in curbing global warming for causing those catastrophes.

"What we're seeing in America, in our communities, is connected to all of this, with every bout with nature's fury caused by our own inaction on climate change," Biden said.