The latest Republicans to snub Donald Trump for Hillary Clinton are former U.S. Environmental Protection Agency bosses Bill Ruckelshaus and William Reilly, directors of the EPA under GOP Presidents Richard Nixon, Ronald Reagan and George H.W. Bush.

In a statement Tuesday, the ex-EPA directors said the 2016 Republican presidential nominee displays a "profound ignorance of science and public health issues," while adding: "Donald Trump threatens to destroy (Republicans') legacy of respect for the environment and protection of public health."

Hyperbole or the truth? Whatever might be said about that legacy, take a look at the slideshow to see what Trump has said about environmental protection, climate change and green issues.