The most of global warming was being caused by increasing concentrations of greenhouse gases produced by human activities. Future climate change and associated impacts will vary from region to region around the globe. Indonesia could propose policy responses to global warming and to greenhouse effect as Indonesia is home to some of the most biologically diverse forest in the world and ranks fourth in the number of population. By 20 years, deforestation in Indonesia around 1990 decreased to less 0,94 million hectares than 1,9 millions by the end of 2010.
