human/natural affects of climate change

Question 1

3 natural causes climate change

Answer 1

solar flares
Milankovitch cycles - orbital change
volcanic activity

Question 2

solar flares

Answer 2

change from min –> max every 11 years. changes solar output and how much energy earth receives

Question 3

volcanic activity

Answer 3

volcanic aerosols reflect sunlight away, temporarily reducing global termperatures

Question 4

orbital changes/ Milankovitch cycles

Answer 4

obliquity/axial tilt - how far the axis tilts. between 21.5 - 24.5
precession - the earths ‘wobble’
eccentricity - path of the earth around the sun. circular to elliptical

Question 5

human causes climate change:

Answer 5

fossil fuels - 50% greenhouse gasses
agriculture - 20% greenhouse gases
deforestation