Geography 2011A/B Study Guide - Midterm Guide: Great Lakes Areas Of Concern, Great Lakes Basin, Lake Huron

• School: Western University
• Department: Geography
• Course: Geography 2011A/B
• Professor: Wendy Dickinson

Document Summary

2009 canada-us great lakes water quality agreement (glwqa) modernize it to meet new challenges. 1972 agreement made largely met requirements, very successful: ddt and mercury declined, reduce algae producing phosphorous inputs. Rising doubt about governments willingness and ability to fulfill their promises. Great lakes face a new set of concerns, new toxic chemicals. Commitments set forth slow, only 3 areas removed from list of hot spots over two decades. Include fire retardants, plasticize, pharmaceuticals and personal care products: risk to fish, wildlife and people. Non-native species are threatening to offset the balance. Invasive species ahs created a biological desert in lake erie where there is a botulism outbreak in fish and birds. Water cycle: evaporates water vapour rises until it hits cooler air condenses to form clouds returns to earth. 1987 governments discontinue monitoring and assessment roles replace by reports from less independent us. Environment slip on both countries" political agendas (ex.