Banner
Flyfishing
Themes
Drivers
Maps
Indicators
Emerging issues
Air quality Ozone Biodiversity Governance
Climate Inland Water Land Vulnerability
Human settlements Marine

Climate

Fjern

Climate original entry page

Climate:
Strategic goal: To stabilize concentrations of greenhouse gases at a level that will prevent dangerous anthropogenic interference with the climate system.
 
Ozone
Strategic goal: To phase out the production and use of ozone-depleting substances

Environmental goal
Indicators
Status
Global mean surface temperature
Global mean temperature

 

Mean surface temperature

 

Mean sea surface temperature

 Reduce greenhouse gas emissions

Emissions of greenhouse gases measured in CO2 equivalents
Greenhouse gas emissions
Quantities of ozone depleting substances produced and consumed
Production and consumption of CFCs
 
Concentrations of halocarbons
Quantities of methyl bromide imported
Consumption of methyl bromide
Quantity of HCFCs consumed
Fjern

The main concern of climate change is global warming, which is based on a ‘greenhouse’ effect. The Earth has a natural temperature-control system in which certain atmospheric gases are critical. Water vapour, CO2, CH4, N2O, and ozone are known as greenhouse gases, because they trap some of the heat radiated by the Earth. They act like a blanket wrapped around the globe.

On average, about one-third of the solar radiation that hits the Earth is reflected back to space. Of the remainder, the atmosphere absorbs some but the land and oceans absorb the most. The Earth’s surface becomes warm and, as a result, emits infrared radiation. The greenhouse gases trap the infrared radiation, thereby warming the atmosphere.

Under this section indicators relating to Climate issues can be found.   

                                                                                
 

 

 







 
Real-time data and statistics
© 2005 - 2010 Department of Environmental Affairs
Site and design by Frameworks
This page was last updated 03/02/2014