generate questions: One computer model of future climate change caused by greenhouse gas emissions shows that the Amazon rainforest could become unsustainable under conditions of severely reduced rainfall and increased temperatures, leading to an almost complete loss of rainforest cover in the basin by 2100. However, simulations of Amazon basin climate change across many different models are not consistent in their estimation of any rainfall response, ranging from weak increases to strong decreases. The result indicates that the rainforest could be threatened though the 21st century by climate change in addition to deforestation.
What change in conditions may make the Amazon rainforest unsustainable? {sep_token} A complete loss of rainforest cover may be caused by what type of emissions? {sep_token} If one computer model turns out correct, by what year would there be a nearly complete loss of rainforest in the Amazon basin? {sep_token} How long may the Amazon rainforest be threatened, according to some computer models? {sep_token} What are the main threats facing the Amazon rainforest in the current century? {sep_token}