polar vortex

Unusual warming and a strange polar vortex this year have changed the cycle of the ozone hole. Don't celebrate too soon, scientists warn.

There is a reason and has determined it, but science is still not exhaustive as to why ozone-depleting factors are particularly strong in the first months of this year.

The Merchant Specialist, chairman of the World Meteorological Organization's Climate and Disaster Committee (WMO), explains the extreme weather phenomenon in cold weather in 2015

According to scientists, global climate change is linked to extreme weather events such as this cold wave in the United States.