Agence France-Presse: Scientists said they have identified a physical mechanism behind the extreme weather that has plagued many parts of the world in recent years - and that it is tied to climate change.
Since 2010, for example, the US and Russia have each suffered scorching heat waves, while Pakistan saw unprecedented flooding.
Scientists from the Potsdam Institute for Climate Impact Research (PIK) have traced the events to a disturbance in the air currents in the northern hemisphere, in a new study out on Monday...