Climate Change Flashcards
What is the Anthropocene
It is described as a new epoch
How can a new epoch be established
Evidence of long term changes to the earth
must be a ‘marker’ of this event that can be identified and dated from digging down into rocks, ocean floor sediment or glacial ice.
What is the greenhouse effect
Short wave Radiation from sun passes into earth
Earths surface heats up and emits long wave radiation
Some infrared radiation stays and heats up earth like blanket
Some escapes to space
What is the enhanced greenhouse effect
Shortwave radiation from space
More greenhouse gases emitted from human activity
Long wave radiation heats up earth
More radiation is trapped in atmosphere
Less goes to space
what are two theories of the anthropecene
columbian exchange or atomic weapons testing
what are the top five countries that emit co2
china
usa
india
russia
japan
what are the greenhouse gases and their percentages
co2 - 75
fluoro gases - 2
metahne - 17
nitous oxide - 6
what are the greenhouse gas strength
co2 - 1
fluoro gases - 10000
methane - 30
nitrous oxide - 600
why are the greenhouse gases produced
co2 - burning fossil fuels
fluoro - aerosole cans and fridges
methane - cattle and agrigulture
nitrous oxide - fertilizers
what are 5 pieces of evidence to describe climate change
drought
ice melting
oceans rising
storms
extreme heat
what is a positive feedback loop and why can it be bad
when something happens causing it to happen again more intensly
it can be bad if there was a storm and it came back more intensly
what is a carbon footprint
climate change impact total that a human has
