climate change

Cards (11)

  • what is the quaternary period?
    a period of time that stretches from 2.6 million years ago to present day
  • what happens in the greenhouse effect?
    greenhouse gases make the earths atmosphere thicker so more solar radiation is trapped and less can be reflected back
  • what is the recent evidence for climate change?
    rising global temperatures
    ice sheets melting
    sea level change
  • what is the evidence for climate change from the quaternary period?
    ice cores - ice layer hold information about carbon dioxide levels in years before
    tree rings - they grow wider in warm and wet years and thinner when its cold and dry
  • what are the natural causes of climate change?
    orbital changes
    sun spots - increase the amount of energy the earth recieves
    volcanic eruptions - they release dust containing gases which can block sunlight resulting in cooler temperatures
  • what are the human causes of climate change?
    burning fossil fuels
    agriculture - methane
    deforestation - releases stored carbon dioxide and reduces the trees available to that out of the air
  • what are the social effects of climate change?
    reduced agriculture
    health issues
    droughts mean less water
    wildfires damaging homes
  • what are the economic effects of climate change?
    decline in fishing - lost jobs and income
    decline in crop yields
    flood damage repair
  • what are the environmental effects of climate change?
    more intense tropical storms
    rising sea levels
    loss of habitat
  • how to reduce the causes of climate change (mitigation strategies)?
    carbon capture - removes it from the air
    planting trees
    international agreements - aim to cut emissions by signing deals
    renewable energy
  • what are the adaption strategies for climate change?
    agriculture - drought resistant crops, new irrigation systems and educating farmers
    managing water supply - artificial glaciers to supply water
    rising sea levels - houses built on stilts, sea walls, mangroves planted and people relocation