Using measurements of atmospheric CO2 from the Mauna Loa Observatory in Hawaii, David Hofmann of NOAA’s Earth System Research Laboratory in Boulder, Colo. and a team of researchers determined that humanity’s contribution of the greenhouse gas has been growing at a steady 2.3 percent since recording began in 1958. At that rate, CO2 doubles every [...]
Archivo de Marzo 2009
21 Mar
La Hora del Planeta 2009 – WWF México
via youtube.com
EL 28 DE MARZO 2009 A LAS 8:30 PM TENEMOS UN ENCUENTRO CON EL COMPROMISO DE SALVAR EL PLANETA Y HACER ALGO PARA DETENER EL CALENTAMIENTO GLOBAL.
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