Wildfire smoke linked to Arctic melting

The dense plumes of wildfire smoke seen in recent years are contributing to the warming of the Arctic, say scientists.

Their study says that particles of "brown carbon" in the smoke are drifting north and attracting heat to the polar region.

The authors believe the growing number of wildfires helps explain why the Arctic is warming faster than the rest of the planet.

They're concerned that this effect will likely increase.

Over the past decade, smoke from raging wildfires in Australia, Portugal, Siberia and the US have changed the colour...