state of the global cliamte

The World Meteorological Organization (WMO) is the United Nations system's authoritative voice on weather, climate and water. For over two decades, WMO has published annual assessments on the state of the global climate in the U.N.’s six official languages to inform governments about global climate trends and extreme and notable events at the national and regional levels. Full Report >>

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WMO Greenhouse Gas Bulletin

WMO Greenhouse Gas Bulletin

Oct 24, 2016

The World Meteorological Organization's Greenhouse Gas Bulletin is published annually to report on the latest trends in atmospheric concentrations of the most important long-lived greenhouse gases: carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).

Today’s Emissions, Tomorrow’s Warming

Today’s Emissions, Tomorrow’s Warming

Nov 7, 2016

As the next United Nations gets underway in Morocco (known as COP22), we compare the current average annual range of high temperatures to their projections for 2100 using two different greenhouse gas emissions scenarios.