Clouds are formed in Earth 's atmosphere when water evaporates into vapor from oceans , lakes , ponds, and even streams and rivers; or by evapotranspiration over moist areas of Earth's land surface. The vapor rises up into colder areas of the atmosphere due to convective , orographic , or frontal lifting.
Video: Tsunami Aftermath: Marine Debris | Download: 1280 x 720 (70 MB)
Estimation of debris path created with OSCURS model.
Earthquakes, floods, and other disasters can seriously disrupt normal life.
The possibility of public health emergencies arising in the United States concerns many people in the wake of recent hurricanes, tsunamis, acts of terrorism, and the threat of pandemic influenza. Though some people feel it is impossible to be prepared for unexpected events, the truth is that taking preparedness actions helps people deal with disasters of all sorts much more effectively when they do occur. To help, Centers for Disease Control and Prevention (CDC) and the American Red Cross have teamed up to answer common questions and provide step by step guidance you can take now to protect you and your loved ones.
Ned Gardiner, Climate Visualization Project Manager, NOAA Climate Program Office.