Evidence

1
Evidence Effects of Climate Change
2

• Rising global temperatures over the last 100
  years

• 1 C increase in Canada over last 55 years, 2.5 C
  in Arctic

3

• Melting glaciers

• Sea ice size of Ont/Que together disappeared !

4

• Rising sea level increase of 5 cm in last 30
  years,
• but more change expected when land ice starts to
  melt!

• Thermal Expansion water takes up more room when
  it is warmer.

5

• More severe weather occurrences
• twice as many category 4 5 hurricanes over the
  last 40 years.

6

• Changing Precipitation Patterns
• more rain less snow now in North America
• Different amounts of rain in other areas of
  world
• leads to famine in drier areas
• more disease/pests in wetter areas

7

• Changing Seasons Ecosystems
• By 2100, average Ontario temperature will be 3-6
  C warmer in the summer and 4-8 C warmer in winter
• Migration patterns of animals will change
• Less biodiversity could see 30 of all animals
  extinct by 2050