1. 서론
? 지난 50년간 지구의 인구는 4배, 에너지 사용량은 16배, 어획량은 35배, 산업 생산량은 40배가 증가했으며, 이로 인한 기후 변화와 지구 환경 위협에 대응하는 것이 인류의 새로운 문제로 주어졌다.
? 동시에 온실가스, 오염물질, 쓰레기, 질병이 증가하였으며, 특히 인구 증가와 함께 산업 및
Abstract
Bioethanol is one of the alternative sources of oil resources which received attention with biodiesel. Many countries produce bioethanol from food sources such as corn and sugarcane, but it causes food-energy conflicts and farmland problem. So it needs to focus on new biomass which is sustainable, renewable, cost-effective and do not occurred any conflicts. Algae are one of the bioma
- How to send the lenses into orbit, in one piece. Since conventional rocket systems with fossil fuel are expensive and polluting, professor Angel hopes to use a coil gun. While it could take 30 years to perfect, this technology might possibly be a revolutionary breakthrough in space travel. Angel's plan is for 20 coil guns to be built around the world, buried deep in mountains. The vertical gun
Lenses are launched into the space
Lenses find their assigned position
Lenses play a role as blocker
Lens material properties required
-Regarding cost
-In order to keep costs down, the lenses will need to be as light as possible
-weigh around 0.04 ounces (1 gram)
-Regarding survivor
- 24/7 heat of the sunlight without changing its properties
ex)becomi
Ⅳ. 기후변화의 영향 사례들
1. 기후변화시나리오(SRES A2)에 따른 소나무의 적정 생육범위분포 변화
-> 성장한 나무들은 어느 정도 환경변화에 적응력이 있어 현재의 소나무림이 갑자기 사라지지는 않지만 상당히 쇠퇴하거나 하층 후계목 발달이 어려워 유전적 다양성이 감소할 수 있을 것으로 생