Humanity & Greenhouse Gases (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Flashcards
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Human activity impact on greenhouse effect
Human activity impact on greenhouse effect
Strengthens it, raises global temperatures
When emissions drastically increased
When emissions drastically increased
Since the Industrial Revolution
Main cause of increased greenhouse gases
Main cause of increased greenhouse gases
Burning fossil fuels
Motor transport contribution to
Motor transport contribution to
Burns fossil fuels, releases large amounts of
Industrial manufacturing emissions
Industrial manufacturing emissions
& other greenhouse gases from combustion
Gases released by air travel
Gases released by air travel
and water vapour into upper atmosphere
Shipping contribution to emissions
Shipping contribution to emissions
Burns heavy fuel oil, significant emissions
Natural process that removes
Natural process that removes
Photosynthesis
Deforestation's effect on levels
Deforestation's effect on levels
Reduces absorption, fewer trees for photosynthesis
% of world's forests lost in 70 years
% of world's forests lost in 70 years
About 50%
Controlled burning's impact on
Controlled burning's impact on
Releases stored in plants back into atmosphere
Cattle farming & methane emissions
Cattle farming & methane emissions
Livestock digestion & animal waste decomposition
Rice farming & methane production
Rice farming & methane production
Decomposition of organic matter in flooded paddies