climate change Flashcards
1
Q
ice cores
A
big sheets of ice which contains air bubbles from when it was frozen, can use this to measure carbon dioxide levels at the time
2
Q
tree rings
A
trees grow a new ring every year the bigger the rings the better the weather was. the smaller the rings the worse the weather was
3
Q
historical sources
A
books. paintings. letter, photos, recorded dates, drawings
4
Q
natural causes of climate change
A
volcanic eruptions, dark spots on the sun, asteroid collisions
5
Q
human causes
A
burning fosil fuels, industry, agriculture, deforestation
6
Q
effects of climate change
A
sea levels rising, ice caps melting, sea temp rising, extreme weather events
