signed the Kyoto Protocol in Kyoto, JapanAccording to Kyoto Protocol, 36 counties are obliged to lower their greenhouse gasemission by 5.2 percent of the amount of emission in 1990.The Kyoto treaty does not include developing countries since they produce less greenhouse gases, and they are too poor to spend money on the environment.
But developing country must participate in the near future.
Water stress results from an imbalance between water use and water resources. The water stress indicator in this map measures the proportion of water withdrawal with respect to total renewable resources. It is a criticality ratio, which implies that water stress depends on the variability of resources. Water stress causes deterioration of fresh water resources in terms of quantity (aquifer over-e
Ⅰ. 온실효과(greenhouse effect)의 정의와 원리
대기 중의 수증기와 이산화탄소 등이 온실의 유리처럼 작용하여 행성 표면에서 나오는 복사에너지가 대기를 빠져나가기 전에 흡수하여 지구 표면의 온도를 높게 유지하는 효과를 말한다. 산업화 이후 화석연료 사용의 증가로 이산화탄소, 메탄, 아산화질
환경오염의 정의
“환경오염이란 자연상태의 공기, 물 또는 토양의 물리적, 화학적, 생물
적 특성이 바람직하지 않은, 다른 상태로 변화여 사람이나 기타 생물체
의 건강과 생존 또는 활동에 해로운 영향을 주는 상태” 汚染 pollution,
物理的 physical, 化學的 chemical, 生物的 biological, 建康 health
오염물
The atmosphere shields us from the sun's cancer-causing ultraviolet (UV) radiation and also moderates the earth's climate.
The atmosphere is obviously vital for human existence, but we have nevertheless been polluting it for years.
The atmosphere is obviously vital for human existence, but we have nevertheless been polluting it for years.
The atmosphere can be divided vertically into four m