Evidence Of Climate Change Flashcards
Where does most historical evidence of climate change come from?
Tree rings, Ice cores and historicals sources
What are the three most evident climate based changes
Extreme weather, Ice melting and Ecosystems under threat
What happened between 1550 and 1850
The little ice age
Explain the impact of climate change globally
All over the world it is altering the frequency or intensity of extreme weather events and spread of certain pests and diseases.
Explain how tree rings work to give evidence towards climate change
The harsher the climate, the closer the rings are together
Explain how ice cores work to give evidence towards climate change
The ice cores show evidence of high C02 levels over a series of years
Explain how historical sources could provide evidence for climate change
Ice cores show ice and snow from previous years before including C02 emmisions and allows us to compare the rates side by side
Tree rings show the general climate and temperature
Historical photos allow us to see and compare the environment from two different times
Explain what climate change is and give evidence for it
Climate change refers to long-term shifts in temperatures and weather patterns. Such shifts can be natural, due to changes in the sun’s activity or large uses of fossil fuels evidence of this is the melting ice caps and rising sea levels
When do tree rings change shape and size?
At different weather conditions during the year
How do scientist discover the CO2 levels in different years with ice cores?
In the icecores there are bubbles which contains air from each year
