Greta Thunberg is a teenage Swedish environmental activist. You've undoubtedly seen her speech at the 2019 U.N. climate action summit in New York, as it went massively viral.

In it, she gives an angry, impassioned plea to world leaders to take climate change seriously, saying that we are on the precipice of a mass extinction, and that their greed and denial of science has stolen her future.

Her demands for a cleaner, greener society was met with cheer from many, criticism from some, and memes from all. careyhickox

Click for more funny memes, our community's Greta Thunberg best memes, and our entire library of Greta Thunberg memes.

The initial Greta Thunberg memes were of people citing her as hope for the future and the younger generation.

smoofzilla

But of course, there were many memes that mocked Greta Thunberg, dismissing her concerns as alarmist and over the top.

armalite_isforlovers

Greta Thunberg memes have become so prevalent that there are even memes about her memes, such as this South Park meme mocking those who mock her.

iamnotgretathunberg

Look, if you have criticisms of Greta Thunberg's message, that's fine. But don't ruin the sanctity of memes with lies.

StormWild9507

A lot of these attack memes on Greta Thunberg leave you rolling your eyes and saying, "Ok, boomer."

ratpcks

One meme category of Greta Thunberg is the idea that she demands unobtainable perfection from everyone and will yell at you if you don't meet her standards.

Alaxyr

Another Greta Thunberg meme genre is the idea that she's not doing anything by expressing her concerns.

theonepeople123

Of course, Greta Thunberg still has her fans, and they make their own memes, casting Donald Trump as a Thanos-like villain.

Compass24

Then we had this moment. Greta Thunberg was actually in the same room as Trump, and a million memes were generated when she cast more shade on him than even Nancy Pelosi could. 

StormWild9507

All we can think while looking at this Greta Thunberg meme is that we hope this burger is vegan.

willbill2602

This Greta Thunberg meme finally gives a visual for a question we've always had on our minds.

Compass24

We'd say this is meme gives a great idea to all those Greta Thunberg stan gearheads out there, but we don't know how many actually exist.

jannesmemelover

Forget debates, this meme makes us want to see Trump versus Greta Thunberg in a roast battle.

This meme is perfectly acceptable. Greta Thunberg is justifiably upset at rising ocean levels and ice cream prices.

Who knew that a Greta Thunberg meme would be exactly the thing dads could use to get across to their teen daughters that don't respect how they're increasing the electric bill.

Loogie125

Yet another Greta Thunberg meme that makes us want to see the president/Greta roast battle. It'd be a verbal slobberknocker.

frontpagelive

Isn't it the worst when your parents are more childish than you? We'd say you should show them this Greta Thunberg meme, but that'd just make things worse for you.

shad0wstrooper

Look, Meme, whether it was the coronavirus or Greta Thunberg, at least the planet is doing better. Either way, remember to wash your hands.

thijspieters1981

This meme is immature. It's also incorrect. Greta Thunberg isn't on drugs because her ideas for the future actually make sense.

bigpapaglim

This Greta Thunberg meme isn't just funny, it's a warning. If we're not careful with our climate, we may go the way of dinosaurs.

StormWild9507

Maybe Greta Thunberg memes are so widespread because they fill us with nostalgia from Simpson episodes that predicted this years ago.

heycanwedie

Greta Thunberg memes aside, let's be real: wash those hands and stay indoors, folks.

starman0627

We're not usually fans of remakes and reboots, but this Greta Thunberg meme makes us want to see her kill all the pollution bills.

Greta Thunberg raps? Great idea, meme! We'd definitely bump that in our... well, not cars, because that would add to the climate issue. 

JackPosobiec

This Greta Thunberg meme offers great relationship advice. For true love to last, you need to share common interests and enemies.

joelberkowitz

This meme explains why Greta Thunberg is so angry at Trump. She's realized that he's basically just Michael Scott, and he's running the free world.

Okay, this Greta Thunberg meme is hilarious. Also, cowboys don't leave the largest carbon footprint, so she might approve of this as well.

einstein_EP1C

This meme is funny, but makes a good point. If Greta and the rest of us can't save Earth, we'll need to get to Mars.

Daaaw. Considering all the divisiveness around Greta Thunberg, it truly is great to see a wholesome meme in the bunch.

i8apankake