Measuring and modeling methane emissions in wetlands

Global atmospheric methane concentrations have risen steadily since 2006. Growth in agriculture, transportation, and industry are partly to blame, but so too is the rise in biogenic emissions, or emissions from natural sources.

World must act to stem surge of polluting trash, UN warns

The world generated 2.3 billion tonnes of municipal waste last year and the pile of trash is set to grow another two-thirds by 2050, the UN said Wednesday, warning of devastating costs for health, economies and the environment.

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