a person who does not accept that climate change is happening, or does not accept that it is caused by human activity such as burning fossil fuels

The senator said that climate deniers and the fossil fuel industry were going to end up on the wrong side of history. 这位参议员说，气候变化否定论者和化石燃料业界终将站在历史错误的一边。

In her arguments against protecting the polar bear, she referenced the work of several high-profile climate deniers. 在她反对保护北极熊的论述中，她引用了几位知名气候变化否定论者的论调。