HCP (NYSE:HCP) announced that its Board of Directors declared an increased quarterly cash dividend of $0. 29, 2015 /PRNewswire/ -- HCP (NYSE:HCP) announced that its Board of Directors declared a quarterly common stock cash dividend of $0.
Earthâs Albedo and Global Warming This interactive activity adapted from NASA and the U.S. Geological Survey illustrates the concept of albedoâthe measure of how much solar radiation is reflected from Earth's surface. The balance between the amount of solar radiation reflected and absorbed by Earth's surface plays an important role in regulating global temperature.
Forested areas or areas with dark soil absorb more radiation and have lower albedos. Human and natural processes have changed the albedo of earthâs land surfaces. For example, earthâs average albedo was much higher during the last ice age than it is today. Human impacts such as deforestation, air pollution, and the decrease in Arctic sea ice have also affected albedo values. These changes alter the net amounts of energy absorbed and radiated back to space.