Climate change is defined as a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global
Warming of the climate system is unequivocal , as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global mean sea level.
Green House Effect
Global mean temperatures are rising faster with time Period Rate 50 0.128 0.026 Years /decade 100 0.074 0.018 Warmest 12 years: 1998,2005,2003,2002,2004,2006, 2001,1997,1995,1999, 1990 ,2000
The Global Challenge
Global Mean Temperature
Global Average Sea Level
Northern hemisphere snow cover
Changes in temperature, sea level and Northern Hemisphere Snow Cover
Background of Earth Hour Campaign
Earth Hour started in 2007 in Sydney, Australia when 2.2 million homes and businesses turned their lights off for one hour to make their stand against climate change
Earth Hour had become a global sustainability movement with more than 50 million people across 35 countries participating
Earth Hour has done a lot to raise awareness of climate change issues.
Visit www. http://www.earthhour.org.za/ to pledge your support.
Earth Hour 2010 takes place on Saturday 27 March at 8.30pm (local time).
Energy Saving Tips
Improved energy efficiency of lightning's by using compact fluorescent lights lamps (CFL) instead of Incascadent Bulbs
Improved heat insulation and building designs
Switch off the geyser
Install aerated shower heads to minimize hot water consumption
Switch lights off
Keep lids on the pot when you cook to conserve heat and energy;
Dont leave electrical appliances switched on when not in use.
Boil only the amount of water you need instead of a full pot or kettle
Close the fridge door every time you take things out. Check that the seal closes properly
Do all your ironing at the same time instead of in little bits;
Install large north-facing windows
Install a solar water-heater instead of an electric geyser;
Use the sun to dry washed clothes instead of a tumble drier
As a coal based economy with high energy intensive industries, There is a need for the country to join hands with international community in raising awareness around Climate Change.