EVSC 1450 Lecture Notes - Lecture 16: Ocean Acidification, Cold Days, Hyperthermia

• School: University of Virginia
• Department: Environmental Sciences
• Course: EVSC 1450
• Professor: Lawrence Deborah

Document Summary

Lectures (includes new ipcc info not in readings) Productivity change (some increases in cool oceans, but declines in warm oceans) Increase in atmospheric co2 -> increased co2 bicarbonate ions and acidity, decreased carbonate ions and ph -> reduced shell and skeleton production. Corals and polar regions (wherever calcium carbonate shells or skeletons are important) Corals -- will be dissolved by an acidic ocean. Organisms that feed on organisms with shells (zooplankton) Ocean systems threatened by exploitation, pollution, and development. As in terrestrial systems, these direct human impacts affect ability . Over the next few decades direct human induced changes will generally have a greater effect on ecosystems and species persistence than will climate change. Crop yields have declined over 30 years. In general, tropical response likely to be more negative. Water variability is going to change in the future, water supply may not be adequate. Plants that grow really fast don"t have.