EnvironmentClimate change is making US hay fever season longer and more intense Pollen seasons in the US have lengthened by about 10 days over 30 years, and there is 21 per cent more pollen in the air, as plants respond to a warming climate and higher levels of carbon dioxide News
EnvironmentTropical rainforests may begin pumping out carbon dioxide by 2050 Rising temperatures over the next 30 years could cause Earth’s tropical and temperate forests to switch from being carbon sinks to carbon sources that release greenhouse gases News