They argue that the increase of ice is caused by global warming.
And the decrease of ice is caused by global warming.
Everything is caused by global warming; which is proof of global warming.
Arctic expedition halted by thick ice: Warmists blame ‘climate change’
Scientists who cancelled their Arctic expedition due to thick ice conditions have an interesting excuse for why they had to abandon their research project – climate change. “We’re doing a large-scale climate change study and before we can even get going on it, climate change is conspiring to force us to cancel that study,” David Barber, a University of Manitoba scientist who lead the expedition, told The Guardian Wednesday.