Lab 5 - Climate Change

Climate Change Overview

• Definition: Climate change refers to significant changes in global temperatures and weather patterns over time.

• Key Factors:

  • Increased greenhouse gases, particularly CO2, trap heat in the atmosphere.

  • Ocean acidification is a direct consequence of increased CO2 levels.

  • Climate changes alter weather patterns in various ways, leading to significant environmental impact.

Importance of Climate Change

• Effect on Species:

  • Ecosystems: Shifts in habitat and food sources.

  • Range Changes: Many species adapt by moving towards cooler areas, altering ecosystems.

  • Extinctions: Increased risk for vulnerable species unable to adapt.

  • Loss of Biodiversity: Declining species diversity affects ecosystem resilience.

• Effect on Humans:

  • Droughts: Changes in precipitation patterns leading to water shortages.

  • Increased Wildfires: Hotter, drier conditions contribute to more frequent wildfires.

  • Sea Level Rise: Melting ice caps and glaciers increase sea levels, threatening coastal communities.

  • Extreme Weather Events: Increased frequency and severity of hurricanes and storms.

Actions to Combat Climate Change

• Mitigation Strategies:

  • Reduce greenhouse gas emissions by transitioning to renewable energy sources (solar, wind).

  • Enhance energy efficiency in transportation and buildings.

  • Promote carbon capture and storage technologies.

  • Advocate for sustainable agricultural practices to reduce carbon footprints.

• Community Involvement:

  • Raise awareness about climate issues at local and global levels.

  • Support policies and initiatives aimed at sustainability.

Climate Data Overview (Los Angeles DWTN USC Campus, CA)

• Period of Record: 07/01/1877 to 06/09/2016

• Temperature Summary:

  • Monthly average max & min temperatures indicate seasonal variation.

  • Example temperatures:

    • Average Max (July): 83.1°F

    • Average Min (December): 49.1°F

• Precipitation Data:

  • Annual average total precipitation recorded over the years is crucial for understanding climate impacts.

  • Historical monthly averages show how climate patterns shift over time.

• Snowfall and Snow Depth: Indicate the variability of winter seasons in terms of cold weather and precipitation.

Exercise 1-4 - Analyzing Climate Data

• Exercises involve calculating averages and examining trends regarding:

  • Average Annual Temperature

  • Maximum Annual Temperature

  • Minimum Annual Temperature

  • Annual Precipitation

• Data evaluation essential for understanding climate variability and long-term trends.