Artist's concept of an orbiting solar power station. Energy is collected by a solar cell array
and relayed to a power station on earth via microwaves. Earth courtesy NASA.
Image available at Visuals Unlimited.

Ecology concept images

Conceptual Stock Photography, Conceptual Stock Imagery, Stock Conceptual Photography,
Stock Conceptual Imagery, Conceptual Stock Illustration, Stock Conceptual Illustration,
Creative Stock Photography, Offbeat Photos, Weird Images, Odd Pictures, Strange Concepts.
Whatever you want to call it.
It's what we do.  We see things a little differently.