Polar regions allegedly key to understanding climate change, scientists say : Nature Environment

"We are trying to understand how the Earth system works," Salmon said, adding that "to understand climate change we need to understand all the interconnections," and better connect the public and researchers.
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"The human species is really capable of making changes to our planet," [Braathen] batted away so-called "climate sceptics."

The situation of the ozone holes over the polar regions is expected to get worse before it gets better and it will take until 2050 for the ozone layer to be as healthy as it was in 1980.
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For most people, the ozone layer depletion is associated with skin cancer, since it serves as a protector from dangerous ultra-violet rays, but Braathen says much more is at stake.

"We can put on clothes and sunscreen, but plants and animals can't. So, we have a major reason for concern for the biosphere as a whole," he explained.