Bill Nye tees off on climate change skeptics: 'The planet is on f---ing fire!'

Activist and television host Bill Nye said the Earth is "on f---ing fire" in a new video warning about climate change, with the self-described "Science Guy" urging lawmakers to "grow the f--- up" and allocate money to fight rising emissions.

“By the end of this century, if emissions keep rising, the average temperature on Earth could go up another four to eight degrees,” Nye said in the video, which was featured on John Oliver's HBO program, "Last Week Tonight." 

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“What I’m saying is the planet’s on f---ing fire. There are a lot of things we could do to put it out — are any of them free? No, of course not. Nothing’s free, you idiots," Nye added. "Grow the f--- up. 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.”

The commentary comes two months after the Green New Deal package of proposals to address climate change failed to pass in the Senate in a 57-0 vote, with 43 Democrats voting "present."

It was co-sponsored by Rep. Alexandria Ocasio-CortezAlexandria Ocasio-CortezOvernight Energy: Court upholds Trump repeal of Obama fracking rule | Oil price drop threatens fracking boom | EPA eases rules on gasoline sales amid coronavirus Ocasio-Cortez blasts coronavirus stimulus package as 'shameful' on House floor Oil price drop threatens US fracking boom MORE (D-N.Y.) and Sen. Ed MarkeyEdward (Ed) John MarkeyHillicon Valley: Twitter says Chinese official's virus disinformation doesn't violate rules | Hackers target WHO | Senators urge agencies to stop coronavirus robocalls Senators urge FCC, DOJ to combat coronavirus robocalls Democrats fume over GOP coronavirus bill: 'Totally inadequate' MORE (D-Mass.) and has been endorsed by several Democratic presidential candidates, including Sens. Bernie SandersBernie SandersWith VP pick, Biden can't play small ball in a long ball world Poll: Trump, Biden in dead heat in 2020 matchup Sunday shows preview: Lawmakers, state governors talk coronavirus, stimulus package and resources as pandemic rages on MORE (I-Vt.), Elizabeth WarrenElizabeth WarrenHillicon Valley: Apple rolls out coronavirus screening app, website | Pompeo urged to crack down on coronavirus misinformation from China | Senators push FTC on price gouging | Instacart workers threaten strike Democratic Senators urge FTC to prevent coronavirus price gouging Democratic senators call on FDA to drop restrictions on blood donations from men who have sex with men MORE (D-Mass.), Amy KlobucharAmy KlobucharWith VP pick, Biden can't play small ball in a long ball world Hillicon Valley: Apple rolls out coronavirus screening app, website | Pompeo urged to crack down on coronavirus misinformation from China | Senators push FTC on price gouging | Instacart workers threaten strike Democratic Senators urge FTC to prevent coronavirus price gouging MORE (D-Minn.), Cory BookerCory Anthony BookerLawmakers, labor leaders ramp up calls to use Defense Production Act Democratic senators call on FDA to drop restrictions on blood donations from men who have sex with men Amazon doubling overtime pay for warehouse workers MORE (D-N.J.) and Kirsten GillibrandKirsten GillibrandLawmakers already planning more coronavirus stimulus after T package Progressive advocates propose T 'green stimulus' plan Juan Williams: Biden's promises on women are a big deal MORE (D-N.Y.).

Oliver during his Sunday evening show blasted conservative pundits for criticizing the Green New Deal while defending it himself.

"It is a nonbinding resolution that very briefly sets out some extremely aggressive goals, including achieving net-zero greenhouse gas emissions, meeting 100 percent of the country’s power demand through clean, renewable and zero-emission energy sources and creating millions of good, high-wage jobs in the United States," Oliver, a former Comedy Central host who came to HBO in 2014, said.