how can you reject the "assumption" (yes I quoted assumption because I believe it should no longer be characterized as an assumption) that us humans have no direct impact on climate change? sure there are cyclical patterns in earths history of major climate change but these have been proven to be a result (most of the time) from major cataclysms. the major cataclysm in this case is in fact the human race! our arrogance and our greed make it so the average person doesn't even think twice about sustainability. we lose the oceans we lose the earth plain and simple and the worlds reefs play a major role in keeping our oceans in balance. therefore we lose our reefs, we lose our oceans, subsequently we lose our earth.