The ongoing rapid retreat of Arctic sea ice is often interpreted as the canary in the mine for anthropogenic climate change. In a new study, scientists have now systematically examined the validity of this claim. They find that neither natural fluctuations nor self-acceleration can explain the observed Arctic sea-ice retreat. Instead, the recent evolution of Arctic sea ice shows a strong, physically plausible correlation with the increasing greenhouse gas concentration. For Antarctic sea ice, no such link is found - for a good reason.
In March 2012, a total of 41.2 million persons were in employment whose place of residence was in Germany. As the Federal Statistical Office (Destatis) further reports, this means that the positive trend on the labour market continued. The number of persons in employment was by 572,000 above the level of the previous year. The number of unemployed was about 2.31 million in March 2012, which was a decrease of 418,000 from March 2011.
Maritime transport and rail transport each accounted for 6% of the transport modes.
There were about 678.000 births in Germany in 2010.
The ongoing rapid retreat of Arctic sea ice is often interpreted as the canary in the mine for anthropogenic climate change. In a new study, scientists have now systematically examined the validity of this claim. They find that neither natural fluctuations nor self-acceleration can explain the observed Arctic sea-ice retreat. Instead, the recent evolution of Arctic sea ice shows a strong, physically plausible correlation with the increasing greenhouse gas concentration. For Antarctic sea ice, no such link is found - for a good reason.
