CO2 concentration in the atmosphere (1959-1998)
CO2 concentrations in the atmosphere have been measured at an altitude of about 4,000 meters on the peak of Mauna Loa mountain in Hawaii since 1958. The measurements at this location, remote from local sources of pollution, have clearly shown that atmospheric concentrations of CO2 are increasing. The mean concentration of approximately 316 parts per million by volume (ppmv) in 1958 rose to approximately 369 ppmv in 1998. The annual variation is d...
12 Feb 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Poverty and unemployment in New York City
The United States Census Bureau sets the poverty thresholds according to money income before taxes, excluding capital gains and noncash benefits, family size and number of children under 18 years old. These thresholds were developed by the Social Security Administration (SSA) in 1964, then revised by interagency committees (1969, 1981). They are adjusted each year using the annual average Consumer Price Index (CPI). For example, a single person u...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
United States of America, greenhouse gas emissions (COP7)
This set of graphics has been produced by GRID-Arendal in co-operation with the secretariat of the United Nations Framework Convention on Climate Change (UNFCCC) for the 7th Conference of the Parties (COP-7) to the Convention, held in Marrakesh, Morocco 29th October to 9th November 2001. This graphic shows total greenhouse gas emissions from the
Please note that this graphic is outdated, and has since been replaced with more upda...
12 Mar 2006 - by Brian Lucas, UNEP/GRID-Arendal