AP Environmental Science Unit 9 Global Change

University:
Texas Lutheran University
Course:
ENVS 130 | Environmental Science
Academic year:

2021
Views:

65

Pages:

1
Author:

Marilyn James

Unit 9: Global Change ● Global Warming ○ Greenhouse Gas Concentration Greenhouse Gas Pre-Industrial Level In 2016 Carbon Dioxide, CO2 280 ppm 400 ppm Methane, CH4 715 ppb 1,840 ppb Nitrous Oxides, N2O 270 ppb 328 ppb ● Effects of Climate Change: What’s Coming? ○ Physical Changes ● Decrease of glaciers and ice sheets ● Continued rising of average ocean levels ● Changes in precipitation ● Increase in frequency and duration of storms ● Increase in number of hot days ● Decrease in number of cold days ○ Changes in Biota ● Increased crop yields in cold environments ● Loss of croplands due to drought and higher temperatures ● Cold-tolerant species will need to migrate to cooler climates ● Heat-tolerant species may spread and invade new habitats ● Additional deaths from water and insect-borne diseases ● Commerce, transport, and coastal settlements may be disrupted by changes in ocean levels and storms ● Change in marine ecosystems and fishery productivity ○ Adaptations to the Warmer Climate ● Must occur at many levels of society ● Develop new technology ● Continue to reduce emissions from engines ● Legislative and behavioral changes needed ● Promote sustainable growth ● Reducing Climate Change ○ Technological ● Carbon sequestration ● Reduction of emissions from engines ○ Behavioral ● Turning off the lights to conserve electricity ○ Policy ● Enacting new treaties and legislation