Tag: Lund University

No Simultaneous Warming of Hemispheres in 20 000 Years

One of the common arguments to dismiss those supporting the idea that the climate is warming as a result of manmade carbon dioxide emissions is that global warming is a natural thing; that it has always varied and that sometimes temperatures rise and that this is a perfectly natural occurrence. However in a new study it has been shown that a simultaneous warming of both the Southern and Northern Hemispheres has never happened in the past 20,000 years.

Arctic Affected by Climate Change More than Expected

β€’ The last five years have been the warmest since 1880 when monitoring began
β€’ Tree ring data suggest that the summer temperatures over the past few decades have been the highest in 2000 years
β€’ Snow cover in May and June has decrease by close to 20%
β€’ The winter season in the Arctic has been shortened by almost two weeks
β€’ There is worry about the decrease in snow and ice cover in the Arctic that will decrease the amount of solar radiation reflected back out into the atmosphere
β€’ Warming is only expected to continue
β€’ Sea level rise by 2100 is expected to be between 0.9 and 1.6 metres, approximately twice what was predicted by the UN panel on climate change