CNN N. H. Town Hall: on Environment

Bernie Sanders: Single-use plastic is a crisis among many pollution crises

SANDERS: Well, it's one of many issues that we have to deal with in terms of the environment. You've seen the pictures of our oceans where there are tons and tons of plastics, where whales wash up onshore and they have all this horrible plastic in it. So this is one of the many environmental crises that we are facing. There is an enormous amount of pollution of all kinds that's now taking place in America. It's not just Flint, Michigan. There are hundreds of communities where people cannot get clean drinking water. So we've got a major environmental crisis. And then we've got a president who has converted the Environmental Protection Agency into the Non-Environmental Protection Agency. He's doing exactly the wrong thing, deregulating polluters. So this is a major issue that we have got to deal with. And as president, I certainly will.

Andrew Yang: Eliminate the penny to speed up economy & save environment

YANG: I mean, they're relatively minor in the scheme of American life, but I'm going to use the penny as an example. Did you know it costs more than one cent to produce each penny? It's bad for the environment. We're spending $25 million on producing pennies more than they're worth. And who wants to get stuck behind that person in line? I don't. So getting rid of the pennies would actually help speed up our economy and save our environment.

Q: So what happens if you owe 16 cents?

YANG: I don't know. Other countries have done the same thing. Things get priced in fives and zeros. It'd be like 15 cents, 20 cents.

Joe Biden: Will bring polluting country leaders to US to find solutions

Tom Steyer: Environmental justice means clean air & water

We're going to make this work the old-fashioned way: We're going to have a government that puts in rules starting day one. We call our climate plan a justice-based climate plan. We can make this work. We can be better paid. We can more just. We can be cleaner and healthier, particularly in black and brown communities, which are bearing the brunt of our pollution.

If there's a big problem, the American government will solve it. And somewhere around 14 or 15 years ago, I thought, this doesn't seem to be working. There's this huge unintended consequence of having a fossil fuel economy, which is climate change. So what I finally decided was, this is a political problem. ]\