Geography 2152F/G Lecture 6: 2018- 10- 22- Climate Change
23 Oct 2018
School
Department
Course
Professor
Document Summary
Global average temperature trends: compared to 30 years of data, the past 10 years have been warmer everywhere on earth, only certain ocean currents are cooler, the north pole is warming faster than anywhere else. If thin- dry or cooler: depends on species of tree, tree ringers provide climate data for up to 1000 years in the past. Determining past climates: glacier bay national park, alaska, what was an ice sheet is now open water. Changes in earth"s surface: theory of plate tectonics, the continents have moved over time, the collision of converging plates results in uplift and the creation of mountains. Implications: this affects wind, temperatures, and precipitation patterns of the surrounding landscape. Variations in earth"s oribt: milankovitch theory climate change, the theory proposes that three separate phenomena relating to earth(cid:495)s orbit lead to, they have been refered to as the three.
