GEOG 130 Lecture Notes - Greenhouse Gas, Climate Change Adaptation, Dairy Cattle
Document Summary
How climatic changes transform/threaten today"s global food system. How food system itself drive climate change. Unintended livelihood consequences of current climate change policies & green economy . Decline of mountain glaciers & snow cover. Interpreting climate change impacts & consequences: the global food system, human. Global temperature and precipitation increases but uneven regional changes (some places may cool or become drier) More active climate system = more precipitation (evaporation of water) Stressors include: (dependent on where changes take place) Agricultural deltas threatened by sea level rise. Climate change & us agriculture (dependent on where it is) Loss of sierra snowpack threatens irrigated agriculture (at worst, loss to 20%) Warmer oceans, less mixing (= less nutrients) Ocean acidification (increased co2 in atmosphere = reaction) Fish are a critical global protein source, especially in poorer regions. Adaptive :solutions: recommended in farmed out biello (2009) Increased agricultural research into drought-resistant crop varieties. Geographically uneven physical exposure but even human geography matters even more.
