Long spaceflights and endurance swimming can ‘shrink the heart’
Spaceflight and endurance swimming can both cause the heart to lose mass, say researchers.
Author Archives: BBC News - Science & Environment
Climate change: Consumer pose ‘growing threat’ to tropical forests
Imports of coffee, cocoa and beef in rich countries cause the loss of almost four trees per person per year.
Earth Hour: Cities around the world turn lights off
Famous landmarks around the world have been switching off their lights to raise awareness of environmental issues.