GEOL 150Lg Lecture Notes - Lecture 24: Ocean Acidification, Estuary, Permafrost
Document Summary
Chapter 7 global impact of climate change. Most climate models predict an average global temperature increase of about 1 c. By the end of the 21st century, the worst case scenario predicts 3-4 c warming. Even in best case scenario there is a predicted warming of 2 c. Study found cali snowpacks in sierra nevada were lowest in 500 years: rising temperatures combined with reduced winter snow fall. Ocean acidiicaion 30-40% of human released co2 is absorbed by ocean. Rivers and estuaries are becoming anoxic at depth. Arcic meling permafrost meling to record depths release methane and co2.
