On April 22, citizens all over the world took to the streets to voice their support for science and climate change awareness on Earth Day. In Washington DC, people brought out their best signs to express the importance of scientific research, while stressing the need for President Trump, who previously called global warming "a hoax" invented by the Chinese, to take these issues seriously. Marchers from London to Australia did not disappoint with their genius and witty slogans. We've rounded up some of the best of the bunch ahead.
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