Terms : Hide Images
| 13266804763 | greenhouse effect | name given to the warming of the climate due to man's actions in the last 230 years |  | 0 |
| 13266804764 | albedo | this refers to the percentage of the sun's energy reflected back into space by the Earth's surface |  | 1 |
| 13266804765 | fresh snow | surface that can reflect up to 90% of the sun's energy back into space |  | 2 |
| 13266804766 | ocean water | surface that can reflect only 5% of the sun's energy back into space |  | 3 |
| 13266804767 | carbon dioxide | greenhouse gas produced by the burning of fossil fuels |  | 4 |
| 13266804768 | methane | greenhouse gas produced by intensive rice cultivation and livestock |  | 5 |
| 13266804769 | nitrous oxide | greenhouse gas produced by the action of microbes on nitrogen compounds in the soil and the sea |  | 6 |
| 13266804770 | 400 ppm | amount of carbon dioxide currently in the atmosphere in parts per million (ppm) |  | 7 |
| 13266804771 | 280 ppm | amount of carbon dioxide in the atmosphere before the industrial revolution in parts per million (ppm) |  | 8 |
| 13266804772 | infra-red or short wave radiation | type of radiation that gets trapped by the Earth's atmosphere in the greenhouse effect |  | 9 |
| 13266804773 | ice cores | source of evidence for past climate change back to almost 1 million years |  | 10 |
| 13266804774 | deep sea sediment cores | source of evidence for past climate change back to more than 50 million years |  | 11 |
| 13266804775 | volcanoes | natural source of carbon dioxide in the atmosphere |  | 12 |
| 13266804776 | interglacial | name given to the period of time (like now) when the Earth's climate is relatively warm |  | 13 |
| 13266804777 | 3 mm | the current rate of global sea level rise per year |  | 14 |
| 13266804778 | increase | what effect does deforestation have on carbon dioxide levels in the atmosphere? |  | 15 |
| 13266804779 | less than 1% | percentage of carbon dioxide added to the atmosphere by volcanoes in the last 250 years compared to man-made additions |  | 16 |
| 13266804780 | 23.5 degrees | the current angle of tilt of the Earth's axis |  | 17 |
| 13266804781 | seasons | effect that the axial tilt of the Earth has on climate |  | 18 |
| 13266804782 | coal, oil and natural gas | name three non-renewable forms of energy that are also fossil fuels |  | 19 |
