Joomla! site syndication http://co2now.org Tue, 06 Jan 2009 14:12:40 +0100 FeedCreator 1.7.2 http://co2now.org/images/M_images/joomla_rss.png http://co2now.org Joomla! site syndication http://co2now.org/index.php/Current-CO2/CO2-Now/earths-home-page-for-atmospheric-co2.html 384.11ppm Atmospheric CO2 for November 2008 CO2 Data Set: Updated Wednesday December 3, 2008 (2:55:37) Measuring Location: Mauna Loa Observatory, Hawaii Data Source: Earth Systems Research Laboratory (ESRL) / National Oceanic and Atmospheric Administration (NOAA) Why is CO2 significant? Carbon dioxide (CO2) is the chief greenhouse gas that results from human activities and causes global warming and climate change. To see whether enough is being done at the moment to solve these global problems, there is no single indicator as complete and current as the monthly updates for atmospheric CO2 from the Mauna Loa Observatory. What is the current trend? At least since the 1958 start of atmospheric CO2 measurements with high-precision instruments, the rate of increase in atmospheric carbon dioxide concentration has accelerated from decade to decade. The latest atmospheric CO2 data is consistent with a continuation of this long-standing trend. What level is safe? The upper safety limit for atmospheric CO2 is 350 parts per million (ppm). Atmospheric CO2 levels have stayed higher than 350 ppm since early 1988. Current CO2 - CO2 Now Tue, 26 Aug 2008 02:44:15 +0100 http://co2now.org/index.php/Current-CO2/CO2-Now/current-data-atmospheric-co2.html The world's most current data for atmospheric CO2 is from measurements at the Mauna Loa Observatory in Hawaii. These high-precision measurements were started by Dave Keeling (shown in the photo) in March 1958. Today, the monthly average concentration of CO2 in the atmosphere is published by the National Oceanic and Atmospheric Administration (NOAA) within a week after each month ends. The source data is organized into a table and republished here at CO2Now.org so more people can see the latest CO2 level and the important CO2 trend. The table includes the full Mauna Loa instrument record for atmospheric CO2. Current CO2 - CO2 Now Fri, 15 Aug 2008 19:21:18 +0100 http://co2now.org/index.php/Know-the-Changing-Climate/Climate-Changes/abrupt-climate-change.html In December 2008, a synthesis and assessment report, Abrupt Climate Change, was transmitted from the US Climate Change Science Program to the United States President and Congress. The report was prepared by the US Geological Survey, the National Oceanic and Atmospheric Administration (NOAA) and the National Science Foundation (NSF). A link to the report is provided below, along with an excerpt from the synopsis. Know the Changing Climate - Climate Changes Thu, 18 Dec 2008 14:32:49 +0100