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Tag: northern hemisphere

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.

La Nina is Back says NOAA

As climate experts had already predicted, the National Oceanic and Atmospheric Administration has announced that La Niña – which was the cause behind so much of the extreme weather towards the end of 2010 and into 2011 – has re-emerged in the Pacific Ocean and is expected to gradually strengthen and continue into the Northern Hemisphere’s winter.

Ocean Currents Speeding Melting Glaciers

New research has shown that strong ocean currents running under the West Antrarctic’s Pine Island Glacier Ice Shelf are eating away at the ice from below, contributing to the rapid decline in the shelf’s mass, thus increasing the amount of meltwater running into the oceans.

Carbon Dioxide Unlikely to Spark Abrupt Climate Change

New research into the issue of whether atmospheric carbon dioxide has the capacity to spark an abrupt climate change has shown that past changes are more likely linked to alterations in ocean circulation unique associated with ice ages, rather than a catastrophic level of atmospheric carbon dioxide.

Stanford Climate Scientists Forecast Hotter Years Ahead

According to Stanford University scientists, the tropics and much of the Northern Hemisphere are likely to undergo an irreversible temperature shift during summers over the next 20 to 60 years if greenhouse gas emissions are not curtailed immediately.