Bill Nye is angrily telling everyone to get their act together and fight climate change: 'The planet's on f---ing fire'

REUTERS/Andrew Kelly

Bill Nye attends The National Board of Review Gala in New York City, January 5, 2016.

• $4 made a guest appearance on last night's episode of "Last Week Tonight," in which the show's host, John Oliver, discussed the Green New Deal.
• In Nye's segment, he torched a globe, saying "the planet's on f****** fire" - a reference to the $4.
• Nye added, "$4 I didn't mind explaining photosynthesis to you when you were 12, but you're adults now and this is an actual crisis."
• $4.

One of $4 is pissed off, and the kiddie gloves are off.

Bill Nye "The Science Guy" is best known for his 1990s public television program of the same name, but he has since made many appearances in films and television shows, served as a science adviser for the Obama administration, and recently hosted $4

On Sunday, $4 on "Last Week Tonight" to offer up a fiery public service announcement. In the segment, Oliver was discussing $4, a proposed set of regulations and initatives that aims to make the US carbon-neutral in 10 years and create jobs in the process. The concept has been championed by many Democrats, notably Rep. Alexandria Ocasio-Cortez, and Oliver noted that it $4 about climate legislation across the country (even though Green New Deal legislation has stagnated in Congress).

Oliver added, however, that we're far from out of the woods when it comes to curbing carbon emissions. Then he invited Bill Nye to $4 - and Nye got real.

Wearing his familiar lab coat, bow tie, and safety glasses, Nye stood behind a table. In front of him sat a globe, a bucket of sand, a flame-retardant blanket, and a fire extinguisher.

"I've got an experiment for you - safety glasses on," he said. "By the end of this century, if emissions keep rising, the average temperature on Earth could go up another 4 to 8 degrees. What I'm saying is the planet's on f---ing fire."

Then Nye pulled a blowtorch from under the table and set the globe alight.

"There are a lot of things we could do to put it out. Are any of them free?" Nye asked, pointing to the three objects on the table that could potentially extinguish the flames.

"No, of course not - nothing's free, you idiots. Grow the f--- up," he said. "You're not children anymore. I didn't mind explaining photosynthesis to you when you were 12, but you're adults now and this is an actual crisis. Got it? Safety glasses off motherf---ers." 

Here's the clip:

Here are some of the real and scary numbers behind Nye's tirade:

The concentration of carbon dioxide in the atmosphere (which traps heat) $4 some 3 million years ago. Last year was the $4 and the fourth warmest year ever for the planet itself. And according to a recent United Nations report, $4, many within decades, in part due to climate change. 

The scientist has good reason to be angry.

You can watch the full segment from "Last Week Tonight" below.