Carolinas are being swamped by these heavy rains and high winds from Hurricane Florence.

The best scientists in the world are all telling us that our activities are changing the climate.

I don't think it's a hoax. I think there's probably a difference, but I don't know that it's man-made.

Experts say that we have until 2030 to avoid catastrophe.

I'm Warren Alney.

President Trump is still a steadfast denier that worldwide increases in temperatures result

from industrialization and other human activities.

But he has struggled to find the right words to acknowledge some indisputable facts.

Real threats do exist, not just to the environment, but to the security of the United States

and other nations.

Here he is in June of this year talking to Pierce Morgan, the host of ITV's Good Morning

Britain show.

I believe that there's a change in weather, and I think it changes both ways.

Don't forget, it used to be called global warming.

That wasn't working.

Then it was called climate change.

Now it's actually called extreme weather, because with extreme weather you can't miss.

Okay, so whether you call it global warming or climate change or extreme weather, the dangers are

undeniable. And today we'll look first at the threat to America's national security. Then we'll

flip the coin and learn how America's national security establishment the Pentagon is contributing

to the danger as well as trying to do something about it. John Conger was principal deputy undersecretary of

Defense for Energy and Independence and the Environment. He's now director of the Center for Climate

...