Steve Stirling recalls a moment in Liberia when he realized the power of the nonprofit, which delivers everything from vaccines to heart valves around the world.
Global and hemispheric land surface rainfall trend maps are available for annual and seasonal rainfall, covering periods starting from the beginning of each decade from 1900 to 1970 until present.
Global average temperature maps are available for annual and seasonal temperature. Long-term averages have been calculated over the standard 30-year period 1961-1990. A 30-year period is used as it ...