Climate Change Flashcards
Global effects of climate change
Ice caps and glaciers melting
Arctic sea ice melting which is polar bears habitat.
Low lying Pacific Islands such as Maldives threat from rising sea level
Evidence of climate change 3 points
Shrinking glaciers and melting ice, rising sea level, seasonal changes.
Natural causes of climate change
Changes in Earths orbit, variations in heat output from the sun, volcanic activity.
How does volcanic activity affect climate change
Sulphur produced reflects radiation from the sun.
What is the greenhouse effect
Like a greenhouse the atmosphere allows most of the heat from the sun (short-wave radiation) to pass straight through it to warm up the Earths surface, however, when the Earth gives off heat in the form of long-wave radiation, some gases such as carbon dioxide are able to absorb it. Therefore heating up the Earth.
How is methane produced
Farm livestock, decaying of organic matter in landfill sites and compost tips.
How is co2 produced
Burning fossil fuels, car exhausts, deforestation
How is nitrous oxides produced
Sewage, car exhausts, power stations, fertilisers
Alternate energy sources
hydro-electricity
nuclear power
solar, wind and tides.
Global impacts of climate change
Stronger tropical storms, increased risk of natural hazards, such as droughts and floods, wildlife at risk as habitats and ecosystems change, environmental impacts, such as desertification, increased risk of natural hazards.
Name two international agreements
Kyoto protocol, Paris agreement 2015
Agricultural adaptations to climate change
Introducing drought-resistant strains of crops, new irrigation systems, educating farmers in water harvesting techniques, shade trees can be planted to protect seedlings from strong sunshine.
How did the Maldives reduce the risk from rising sea levels
Sea walls, artificial islands, locations could be relocated to Sri Lanka.
