soils Flashcards
what are greenhouse gases
warming the earths surface and the air above it caused by gases in the air that trap energy from the usn
what are ice cores
cylinders of icedrilled out of an ice sheet or glacier
what is global warming
temperature levels increasing globally over the last 200 years
what is the greenhouse effect
suns solar energy penetrates the atmosphere, the surface warms up but cools down at the night, it releases heat in the air, some of it gets trapped by greenhouse gases, this keeps our earth average at 15’
what are the 3 main causesof climate chnage
1.carbon dioxide
2.methane
3.nirous oxide
whats an example of how carbon dioxide is creating climate change
burning fossil fuels like coal and oil energy+deforestation
whats an example of how methane is creating climate change
produced when fossil fuels are extracted from earth , main ingrediant of natural gas
whats an example of how nitrous oxide is creating climate change
artificial fertilizers are the biggest source, chemicals make soils more fertile, increase release of nitrous oxide into atmosphere
how are polar ice sheets causing sea levels to rise
global warming melts ice sheets+glaciers, flood and erosion occurs, this results in a lack of clean water
how to extreme weather events affect climate change
extreme weather events like droughts,floods, and heatwaves are becoming more popular eg flooding in spain
how is desertification effectinf climate chnage
global warming causes drought which leads into fertile land into a desert
how is a threat to wildlife effecting climate chnage
global warming is a threat to many species, the average rise in global temperature of 1.5’C could put 30% of species at risk of extinction
what is a solution for climate chnage
th Paris climate agreement-195 countries signed a contract for a plan to avoid climate chnage as much as possible
