Helmholtz Centre For Ocean Research

Back-to-back volcanic eruptions in the mid-6th century darkened Europe's skies for more than a year and may have ushered in the Dark Ages, according to finding to be presented Friday at a science conference in Vienna.

Technology to drain heat-trapping CO2 from the atmosphere may slow global warming, but will not reverse climate damage to the ocean on any meaningful timescale, according to research published on Monday.

Back-to-back volcanic eruptions in the mid-6th century darkened Europe's skies for more than a year and may have ushered in the Dark Ages, according to finding to be presented Friday at a science conference in Vienna.

Technology to drain heat-trapping CO2 from the atmosphere may slow global warming, but will not reverse climate damage to the ocean on any meaningful timescale, according to research published on Monday.