Climate change is best described as the effects on our climate which can be attributed to the accelerated greenhouse effect. The greenhouse effect describes the way in which greenhouse gases (GHGs) build up in our atmosphere and help trap heat. The fast majority of the world's leading scientists tell us that the accelerated greenhouse effect is due to an unnatural and increasing build up of GHGs in our atmosphere from industrialisation.

Trees have played a critical role in maintaining safe levels (for life as we know it) of oxygen and carbon dioxide in the atmosphere for millions of years. When you donate to us, we plant native trees that remove and store CO2 from the atmosphere as they grow. Find out how trees remove carbon dioxide from the atmosphere, what contribution trees can make to fighting climate change and why we need more.

Find out more information on the Carbon Pollution Reduction Scheme / Emissions Trading, NGERs, the Greenhouse Challenge, our Kyoto targets and action, renewable energy targets and the role voluntary action.

Find out how Australia ranks against other countries, our per capita emissions, statistics on travel, energy and food consumption and how you contribute - and more interesting facts and figures.