The pollution (80percentt man-made) also cuts sunlight penetration, thus reducing rainfall, affecting agriculture and otherwise altering the climate.
The man-made photosynthesis uses sunlight to separate hydrogen atoms from water molecules in a solar-powered "leaf".
Influenced by his honeymoon in the Caribbean, Jarrell became interested in the effects of man-made and natural sunlight on the environment.
In particular, its report highlights the role of aerosols (small, airborne and often man-made particles that reflect sunlight and thus cool the atmosphere, rather than warming it).
(Man-made aerosols, produced by burning coal, oil, and biomass, also reflect sunlight and are a countervailing force to greenhouse warming, albeit one with serious health consequences of its own).
Others cite man-made influences including industrial emissions of black soot, which warms the air by absorbing sunlight.
Nothing man-made can ever completely replace the health benefits nature provides in clean, fresh air and sunlight.
On the other hand, aerosol particles produced by some vehicles and industrial processes tend to bounce sunlight away from the earth, temporarily counteracting some of the warming caused by man-made greenhouse gases.
The idea of using man-made techniques to ease the effects of climate change, by sucking CO2 out of our atmosphere or increasing how much sunlight the Earth reflects, is not a new one.
DOI: http://dx.doi.org/10.7554/eLife.05919.001 Sunlight is the Earth's primary energy source and is exploited by an array of natural and man-made processes.
Man-made systems use gyroscopes.
