This frail polar bear has become the symbol for climate change

National Geographic photographer, Paul Nicklen, is well-known for his environmental activist methods, where he lets his images speak for themselves.

Earlier this week, Nicklen posted a video from his recent expedition to the Baffin Islands. In the video, Nicklen captures a polar bear, who appears to be dying of starvation.

"When scientists say bears are going extinct, I want people to realize what it looks like," said Nicklen.

Through his photos, Nicklen aims to sound the alarm about the impact climate change is having on the environment.

"This is brutal to watch but we shoot to have a microphone on issues like climate change. Support is pouring in and we are forever grateful as we have so much work ahead of us," he said.

The dance we do when we speak about climate change is exhausting. Some people will simply never believe, despite irrefutable scientific evidence, bizarre weather events, and unprecedented natural disasters. So, as we head into holidays—where many of us will find ourselves debating with loved ones about important topics like climate change—do yourself a favour and search “global temperatures over the past 100 years.” Find one of the innumerable graphs and studies that show the consistent rise in temperature, download it to your phone, and share it with deniers. Most importantly, do not fight with these people. Kill them with kindness, intelligence, patience and empathy. The climate change crisis is urgent and important, but we must treat each other with respect.

A post shared by Paul Nicklen (@paulnicklen) on Dec 7, 2017 at 11:55am PST

The video continued to draw more international attention throughout the week. On Friday, National Geographic posted a statement to address some of the public's questions and concerns:

"Unfortunately the bear only had an hour or two left, and Paul didn't have a tranquilizer (or meat) with him while out filming."

During our recent expedition to the Northwest Passage and Lancaster Sound, the crew of the MV Archimedes treated @Sea_Legacy like gold, allowing my team to focus on telling stories and gathering images to show the world what’s at stake up there. I want to send an Arctic-sized thank you out to the whole team of the Archimedes and @EYOSexpeditions. Let’s do it again. #turningthetide #instagood #polarbear #conservation #bears

A post shared by Paul Nicklen (@paulnicklen) on Nov 27, 2017 at 4:36pm PST

Nicklen, a biologist turned wildlife photographer, continues to work in the Canadian Arctic documenting the effects of climate change alongside the organization, Sea Legacy.

To see more of his work, visit Paul Nicklen's gallery.