Greta Thunberg used Earth Day to blast world leaders for their "insufficient" climate targets.

Taking to Twitter on Thursday (April 22), the 18-year-old shared a video which she said was an "emergency alert for the general public". In the four-minute piece, Thunberg urged the public to "call out their bulls**t" - referring to world leaders.

As for these "bulls**t" targets, President Biden has pledged to halve the US's greenhouse gas emissions by 2030, the EU has pledged a 55% reduction, and the UK plans to cut emissions by 68%.

China, which has the highest emissions of all, promised to be carbon-neutral by 2060.

But according to the Swedish climate activist, these pledges are "full of gaps and loopholes".

Check out her video here:

Thunberg says in the video: "At the leaders' summit countries will present their new climate commitments, like 'net zero emissions by 2050'.

"They will call these hypothetical targets 'ambitious'. But when you compare our insufficient targets with the overall current best available science, you clearly see there’s a gap. There are decades missing.

"Of course we welcome all efforts to safeguard present and future living conditions, and these targets could be a great start, if it wasn’t for the fact they are full of gaps and loopholes."

Thunberg goes on to say that some of these loopholes mean that emissions from imported goods, international aviation, shipping, and the burning of biomass will not be included in these so-called ambitious targets.

She then says that the targets are "completely relying on future, fantasy-scaled, currently barely-existing, negative emissions technologies".

Credit: Franz Perc / Alamy Stock Photo

The teen adds: "We can keep cheating in order to pretend that these targets are in line with what’s needed, but while we can fool others – and even ourselves – we cannot fool nature and physics. The emissions are still there, whether we choose to count them or not.

"The gap between the urgency needed and the current level of awareness and attention in becoming more and more absurd. And the gap between our so-called climate targets and the overall best available science should no longer be possible to ignore."

Thunberg describes this gap as "the biggest elephant that has ever found itself in any room."

Biden is currently hosting a two-day virtual climate summit in which 40 countries come together to discuss the global climate crisis.

Featured image credit: Jasper Chamber / Alamy Stock Photo

Greta Thunberg is certainly enjoying her time in Glasgow, Scotland, for COP26.

On Monday, November 1, the teenage climate change activist joined a crowd of protesters as she chanted: "You can shove your climate crisis up your a**."

Thunberg was one of the hundreds of activists present in Festival Park demonstrating against global leaders' failure to act in the midst of a climate crisis.

The moment quickly went viral on Twitter, and was retweeted by Thunberg with the caption: "When in Scotland..."

People were naturally tickled by Thunberg's chanting, and joked about her now-ties to Scottish culture.

Credit: PA Images / Alamy

One Twitter user wrote: "Glad to see you're settling in," while another asserted: "A bottle of bucky and an iron bru an she's in [sic].''

Thunberg was one of the activists speaking at the Fridays for Future meeting of young activists at Festival park, near the COP26 campus.

She asserted that change would not be coming from the leaders and politicians at the summit, but rather from individuals who put themselves forward.

"This COP26 is so far just like the previous COPs and that has led us nowhere. They have led us nowhere," Thunberg said.

"Inside COP there are just politicians and people in power pretending to take our future seriously, pretending to take the present seriously of the people who are being affected already today by the climate crisis."

"Change is not going to come from inside there. That is not leadership - this is leadership," she added, before leading cries of "climate justice," and "no more blah, blah, blah".

Credit: Jasper Chamber / Alamy

"We're sick and tired of it and we're going to make the change whether they like it or not," Thunberg concluded.

Earlier this week, the heads of 120 arrived in Glasgow for the 2021 United Nations Climate Change Conference, including Prime Minister Boris Johnson, US President Joe Biden, and French President Emmanuel Macron.

A further 25,000 delegates will be in attendance at the two-week climate conference (held between October 31 and November 12), which is taking place in the UN-controlled blue zone on the north side of Scotland's River Clyde.

Featured image credit: PA Images / Alamy

Greta Thunberg is not one to mess with when it comes to social media.

Whether it's using Donald Trump's own quips against him, trolling her haters on her 18th birthday, or even Rickrolling her followers on April Fool's Day - Thunberg has proved time and time again that she is the unexpected 'Queen of Twitter'.

And the 18-year-old climate activist is at it again, and this time, it is UK Prime Minister Boris Johnson who is her latest target.

Per The Independent, Johnson was giving an address at a virtual summit on Thursday, April 22 - Earth Day - when he all of a sudden started to talk about bunnies.

In an apparent attempt to highlight the ongoing climate crisis as something that should be taken seriously, Johnson said:

"It’s vital for all of us to show that this is not all about some expensive politically correct green act of bunny hugging or however you want to put it, there’s nothing wrong with bunny hugging, you know what I’m driving at."

Johnson's rabbit talk came on the same day President Biden pledged to cut the US' greenhouse gas emissions by 50-52%.

Now, The Independent reports that the UK government did, in fact, announce ambitious plans to cut carbon emissions by 78% by 2035 - but this goal was sadly lost in all the bunny talk.

For example, businesswoman and TV personality Deborah Meaden said: "Best watch this curled up behind the sofa....it is truly cringeworthy. the most important issue we face today and he stumbles through ridiculous out of step bunny Hugging comments FGS (you could replace the G with an F...)".

But within the slew of criticism Johnson faced from his critics on social media, it was Greta Thunberg that had perhaps the best response.

Credit: Screenshot/Twitter

Shortly after Johnson made his bumbling comments, Thunberg had changed her Twitter bio to simply read: "Bunny hugger".

On a more serious note, the teenage activist scorned US lawmakers at a House of Representatives committee hearing hosted by President Biden on Thursday.

Speaking via video link, the 18-year-old asked: "How long do you honestly believe people in power like you will get away with it?"

She added: "How long do you think you can continue ignoring the climate crisis, the global aspect of equity and historic emissions without being held accountable?

"You get away with it now, but sooner or later people are going to realize what you have been doing all this time."

Featured image credit: Entertainment Pictures / Alamy

We are in a global climate change emergency. Annual ice loss is at an "unprecedented" rate, and this summer, the Amazon rainforest, often dubbed as the "Earth's lungs", has been ravaged by fire.

Now, people all around the world are taking action in an attempt stop the crisis before it's too late, and one of the loudest voices in the movement is that of 16-year-old Greta Thunberg.

At the UN climate summit, she blasted world leaders for their lack of action before glaring at President Trump: 

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"People are suffering, people are dying, entire ecosystems are collapsing. We are in the beginning of a mass extinction and all you can talk about is money and fairy tales of eternal economic growth," Thunberg said.

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"How dare you continue to look away and come here saying that you're doing enough when the politics and solutions needed are still nowhere in sight," she continued. "You say you hear us and that you understand the urgency, but no matter how sad and angry I am, I do not want to believe that. Because if you really understood the situation and still kept on failing to act then you would be evil and that I refuse to believe."

And when the teenager spotted President Trump, who famously said that climate change was a hoax invented by the Chinese, she gave him quite possibly the most terrifying death glare in history:

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In response to this, the 45th president of the United States commented on the teenager on Twitter.

"She seems like a very happy young girl looking forward to a bright and wonderful future. So nice to see!" Trump posted alongside a video of the 16-year-old's speech.

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Then, she slammed Trump again, simply by quoting his tweet in her biography:

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Greta, who has been open about her Aspergers diagnosis, said that her condition has helped spur on her mission to reverse the climate change emergency.

"My diagnosis has definitely helped me keep this focus. When you are interested about something you just continue to read about it and you get super focused," she told CNN's Bill Weir.

Greta Thunberg rang in Halloween in the best possible way: trolling climate change deniers.

Rather than donning a spooky costume, she took aim at her haters. Posting a photo on Twitter of herself alongside a placard which reads "skolstrejk för klimatet", the 16-year-old captioned the tweet, "So today is Halloween. I don't celebrate it back home, but I thought I might give it a try. And apparently when it comes to scaring a bunch of angry climate crisis deniers - I don't even have to dress up!! #trickortreat." 

Watch Greta Thunberg rebuke world leaders in her rousing UN speech: 

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And the post garnered quite the reaction on social media. "You're terrific! The youth of today need leaders like you. Keep it up, stay strong!" wrote one fan, while another corroborated "LOL so funny because it's true. Hopefully, the hospitals won't be flooded with deniers suffering severe shock."

"Nothing is more terrifying to those in power than a smart young person using their voice to address systemic problems," added a third. 

Another wrote: "Especially rich mean old men. You’re their worst nightmare!!"

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Earlier this week, Thunberg was praised for her activism after winning the Nordic Council's annual environment prize, which boasts a $75,000 cash reward.

She chose to turn it down, however, asserting that such prizes don't do anything to help the planet. "I am currently traveling through California and therefore not able to be present with you today. I want to thank the Nordic Council for this award. It is a huge honour," Thunberg wrote on Instagram.

"But the climate movement does not need any more awards. What we need is for our politicians and the people in power start to listen to the current, best available science. The Nordic countries have a great reputation around the world when it comes to climate and environmental issues."