Please enable JavaScript.
Coggle requires JavaScript to display documents.
Climate Change Cause and Impacts - Coggle Diagram
Climate Change Cause and Impacts
Climate and Weather
Climate: Average and extreme of weather conditions over a period of not less than 30 years
It includes: 1. Temperature 2. Rainfall 3. Humidity 4. Cloud cover 5. Wind speed and direction 6. Air pressure
Weather: state of the atmosphere at any given instant
Temperature, rainfall, humidity, cloud cover, wind speed and direction and air pressure
Atmospheric and Oceanic circulatory
Weather and climate are affected by oceanic and atmospheric circulatory systems. The oceanic conveyor belt transfers energy around the world
Maritime - Relating to areas that are close to the coast
Continental - Relating to areas that are distant from the coast
Wind from low latitudes tend to be warm and winds from high latitudes are cold. Winds that blow over oceans are moist whereas blow over land are dry
Greenhouse gases and the greenhouse effect
Greenhouse gases allow incoming short-wave radiation to pass through the atmosphere and heat up the Earth's surface. They trap a proportion of the out going long wave radiation from the Earth
Carbon dioxide (Co2) Levels in geological times
As carbon dioxide increase, a higher temperature of the earth happens
Greenhouse gases - Atmospheric gases that absorb infrared radiation, causing world temperatures to be warmer than they would otherwise be
Human activities and greenhouse gases
Main greenhouse gases: 1. Water vapour 2. Carbon dioxide 3. methane 4. CFCs.
Human activities increasing levels of carbon dioxide, methane and CFCs in the atmosphere, which lead to global warming (an increase in the average temperature)
Sources of carbon dioxide include
Respiration
Breakdown of organic material
volcanic vent
burning of fossil fuels
Sources of methane include
wetlands
bogs
stagnant water bodies
rice paddiees
Impacts of climate change
biomes shifting
Change in location
changed weather patterns
Coastal inundation ( thermal expansion)
Human health
Positive and negative feedback
Positive feedback involves increasing temperatures, melting permafrost and the release of methane
Global dimming
reduction in global temperatures as a result of pollution
