Green house effect

• Green house effect

  natural process that heats earth surface - when sun

  1.
• Green house effect

  Natural process that heats earths surface. when sun's energy reaches earth's atmosphere most of this heat escapes but some is absorbed

  1. solar radiation passes through atmosphere when entering earth
  2. infrared radiation is given off by the earth
  3. most of this radiation escapes into outer space - allowing earth to cool
  4. some of the heat is trapped by Green house gases
• Enhanced Green house effect

  steps 1 - 4 form green house effect apply

  5. Increasing levels of GHGs increase amount of heat trapped so the atmosphere and the earth heats
• Methane

  CH4

  source: livestock farming reservoirs leaking under ocean
• Nitrous Oxide

  N2O

  Fertilizer - Microbes eat the fertilizer and belch out nitrous oxide
• Water Vapour and Carbon Dioxide

  H2O and CO2

  Source: factories use electricity
• Permafrost positive feedback loop

  w

  1. High levels of GHG cause global warming
  2. temperature increase causes permafrost to melt
  3. Thawing exposes previously frozen matter to decay
  4. as the matter decays CO2 is released into the atmosphere
  5. loops
• Carbon footprint

  quantifies impact of individual/company/country on the environment of CO2 emissions
• Factors contributing to Carbon foot print

  travel needs, electricity usage, clothes you wear, diet