For years, environmental advocates and scientists have been warning everyone that climate change is the Earth’s greatest threat. But despite all the studies, news reports, and actual calamities, some still choose to be skeptic about it. Things are getting worse, and if the ice and glaciers continue to melt, more species become extinct, and carbon dioxide grows higher, we might not be able to protect ourselves from this man-made disaster.

So how do we make more people believe, understand, and move against climate change? BBC One and the 92-year-old wildlife broadcaster David Attenborough teamed up once again to make a documentary that would serve as an eye-opener for everyone.

In Climate Change – The Facts, Attenborough takes the audience to a straightforward hour-long survey of the status of the Earth and the drastic effects of global warming. It showed helpless animals crying for help, even ones that are specifically adapted to heat.

To help you get a picture of what goes on in the documentary, here’s one scene: Dead bats dominated the grounds of a forest. Environmentalists who went there couldn’t even hide the pain in their voice. “There was a deafening sound of baby bats crying. You just don’t know where to start. So we just started finding babies basically, and even found a little baby attached to his dead mum,” conservationist Rebecca Koller said.

Flying foxes are another victim. Despite being built to withstand any temperature, the changing heat last year in Australia, which hit 42 degrees celsius, led to the death of over 11,000 of them.

These are only few of the many eye-opening and heartbreaking scenes in the documentary which, as most critics pointed out, could be even close to a horror movie.

It slaps the reality to our faces; that we are the reason behind this. This is a man-made catastrophe, and we’re doomed.

“It may sound frightening, but the scientific evidence is that if we have not taken dramatic action within the next decade, we could face irreversible damage to the natural world and the collapse of our societies,” Attenborough said.

It’s time we move and encourage other people to do the same. If you’re having a hard time to convince the others, at least tell them to watch the documentary below: