1 Immediately call your local law enforcement agency. 2  After you have reported your child missing to law enforcement, call the National Center for Missing & Exploited Children at 1-800-THE-LOST(1-800-843-5678). 3  If your child is missing from home, search through:
Sea Change. Since around the time of the Industrial Revolution (the late 18th and early 19th centuries), Earth's atmosphere has warmed by a little less than 1Â° C (1.8Â° F) (Figure 2). In turn, the ocean has also risen by about 15 centimeters (6 inches) over the past 100 years -- for two reasons. First, when water warms up, it expands, in much the same way as a solid does when it heats up.
Global Warming. Throughout its long history, Earth has warmed and cooled time and again. Climate has changed when the planet received more or less sunlight due to subtle shifts in its orbit, as the atmosphere or surface changed, or when the Sunâs energy varied. But in the past century, another force has started to influence Earthâs climate: humanity.