Greenhouse Effect - Zoom Astronomy
Physics of the Greenhouse Effect Pt 1 | Climate Change
According to Crowley (2000), the combination of a unique level of temperature increase in the late 20th century and improved constraints on the role of natural variability provides further evidence that the greenhouse effect has already established itself above the level of natural variability in the climate system....
Global Warming: The Physics of the Greenhouse Effect
: Although greenhouse effect is an important naturally occurring process, human activity causes the emission of more gases into the atmosphere, which deplete the ozone layer and cause climate change.