Careful and comprehensive scientific assessments have clearly demonstrated that the Earth's climate system is changing rapidly in response to growing atmospheric burdens of greenhouse gases and absorbing aerosol particles (IPCC, 2007). (planet3.org)
The global atmospheric lifetime characterises the time to achieve an e-fold decrease of the global atmospheric burden. (ipcc.ch)
«The release to the atmosphere of only one percent of the methane assumed to be stored in shallow hydrate deposits might alter the current atmospheric burden of methane up to 3 to 4 times,» Shakhova said. (nsf.gov)