Bill Nye spent a good chunk of Monday afternoon answering questions great and small — the Nye way, really — on Twitter, capping many of the pithy sound bites off with, “We can do this! Let’s get to work, people!” He ended a few with urges to get out there and vote, especially for issues around global warming. It was great, and you can watch them all over at Nye’s Twitter feed.

Nye used the #strictlyscience hashtag for the Q&A session. We’ve watched them all and presented a few annotated clips below. In short, he won’t be running for president (sorry), if countries can align to defeat the Nazis they can surely align to create renewable wind and solar energy, and there won’t be another ice age for quite some — we should really be thinking about the next few centuries and how hot it’s going to be instead.

First things first: No, he won’t sing the Bill Nye the Science Guy theme song. “That’s not how it rolls man,” Nye says.

“If we get to work on it,” Nye says we could convert almost all of the energy in the United States to renewables by 2050, and we could be “80 percent renewable” by 2030, “You have to optimistic.” He adds:

Nye talks about dark matter with Macy:

Nye gets real with Mike:

Praise for The Martian:

Nye says his lack of political experience means he won’t run for president.

Here Nye advises that in the event of a global virus, you should “wash your hands, that’s really the name of the game.” He ends with “get vaccinated, everybody!”

“Electrify the ground!”

That Bill Nye documentary (you know, the one from Kickstarter) may be at Sundance 2017:

“The next few centuries are serious problems for us if we don’t get started on addressing climate change,” Nye says. “This meeting in Paris was good, but it’s just the start of a much bigger effort.” Here’s the full video:

“It’s very hard to predict the future,” Nye says, saying that what we can do on our phones now trumps the communication tech seen on Star Trek.

It’s about wind and solar energy: “We can do that if we want to,” Nye says, who adds we need to electrify ground transportation, too:

“The Earth’s going to be here” — for about four billion years, until it’s absorbed by the Sun, Nye says. He adds the big priority is for us to preserve its resources, of course:

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