The 3 greenhouse gases are carbon dioxide, methane, and nitrous oxide.
Too many greenhouse gases can lead to: rising temperatures, rising sea levels, and extreme weathers, etc.
Greenhouse gases can be reduced by: reducing energy usage, reducing the use of fossil fuels, and encouraging the use of green buildings, etc.
Natural greenhouse effect: Existing greenhouse gases in the atmosphere that regulate Earth's temperature.
Enhanced greenhouse effect: Excess production of greenhouse gases due to human activities, trapping more heat and energy, causing global warming.
National consequences: Economic losses, potential impacts on national security, potential disruption to local ecosystems, increased health-related costs and impacts, potential loss of cultural heritage.
