methane budget eurekalert.org Category:science and education Global Rank:67,971 visits:1.1M pages/Per:1.6 ccacoalition.org Category:government Global Rank:969,077 visits:46.6K pages/Per:1.7 globalcarbonproject.org the global carbon project (gcp) was established in 2001 in recognition of the enormous scientific challenge and fundamentally critical nature of the issue for earth sustainability. Category:environmental science Global Rank:2,156,499 visits:13.7K pages/Per:2.9 ADS