You are currently browsing the Green Saving Expert blog weblog archives for the day 15/10/2009.
- Uncategorized (48)
- 09/03/2011: Polar ice loss quickens, raising seas
- 04/02/2011: Amazon drought worries scientists
- 24/01/2011: 2010 warmest / second warmest on record
- 15/01/2011: 2010 ties 2005 for warmest year on record
- 21/12/2010: Photos showing past and present
- 28/11/2010: Greenhouse gases reach record levels in 2009 - WMO
- 27/11/2010: 2010 to be hottest year on record?
- 25/11/2010: Solar PV Calculator
- 25/11/2010: Carbon emissions - latest news
- 20/08/2010: Simple energy saving measures at home could cut more CO2 than thought
Archive for 15/10/2009
Arctic will be ice-free
15/10/2009 by admin.
Two related articles have come out this week.
Firstly, scientists can now map CO2 levels back 20 million years. Between 20 and 14 million years ago, CO2 levels stood at around 400 ppm - similar to the levels that we are approaching now. Back then, there was no ice caps and sea levels were 25-40 metres (80-130ft) higher than today. These high levels of CO2 were probably due to prolonged volcanic activity. Over the last few million years, CO2 levels were between 180 and 280ppm, compared to 385+ today.
More details can be found here.
Secondly, the Catlin Arctic Survey suggests that the Arctic will be ice-free in summer within 20 years, and most of this loss of ice will happen in just 10 years.
See here for more information.
Posted in Uncategorized | No Comments »