Climate 2 and antarctic meteorites and review: increasing carbon in the atmosphere, fossil fuels burning, co2 absorbs heat. Know the trends/patterns in the following: ice sheet mass change, antarctic temperature, ice shelves, antarctic sea ice, artic sea ice, sea level, co2. The longest ice core record is 800,000 years: ppm: parts per million: carbon dioxide, ppb: parts per billion: methane. Pre-human causes of climate change: solar radiation from the sun. Change in shape of earth"s orbit: eccentricity. Change in the tilt of earth"s axis: All three change the amount and timing of the energy we receive from the sun: change in the greenhouse gases. Meteorites: naturally occurring space rock, rich in metals, survives the fall to earth, can be from. The one that caused a mass extinction 65 mya-chicxulub crater on peninsula of yucat n. And on mars: all meteorites formed at the same time: 4. 56-4. 50 billion years ago.