Trump on environment at WEF summit

US President Donald Trump was questioned on his environmental and climate policies on Tuesday, saying "I'm a very big believer in the environment".

He spoke after giving an address at the World Economic Forum (WEF) in Davos.

Trump ignored questions from reporters on his historic impeachment trial which was set to reconvene Tuesday in the US Senate in Washington.

Trump's administration has called for expanded use of carbon-spewing coal, stripped away environmental protections and played down concerns among scientists about man-made climate change.

Trump has also taken the US out of the landmark 2015 Paris accord to fight climate change.