Climate Change - The Big Picture
"Global warming is one of those things, not like an earthquake where there's a big bang and you say "Oh my God, this really has hit us", it creeps up on you. Half a degree temperature difference from one year to the next, a little bit of rise of the ocean, a little bit of melting of the glaciers and then all of a sudden it is too late to do something about it". Arnold Schwarzenegger (Governor of California and Actor).
The use, abuse and demand for energy resources and the subsequent affect on the environment, in particular the atmosphere, are among the greatest challenges facing humanity today. The terms climate change and global warming appear with increasing frequency in news reports to explain a whole range of natural disasters such as floods, droughts and hurricanes. Yet the issues are complex. Until recently, doubts could be expressed regarding the causes of global warming. Now the evidence is so overwhelming that all but a few individuals accept that global warming is the result of human activity.
The term climate change is used to refer to significant climatic differences from the 'average weather'. These changes take the form of rising temperatures, change in rain patterns, increased droughts and sea level variations. Climate change may take place on a regional or global level and the time scale can vary over years, decades, centuries or millennia.
- Climate Change the Big Picture
- Evidence for long term climate change
- Causes of Climate Change
- Global Warming Timeline
- Useful links