NO question about it. The Earth’s climate is changing. Then again, it is forever changing. For millions of years, the Earth’s climate has alternated between cycles of warm and cold. When dinosaurs ...

A device that gets scorching hot as it captures and traps much of the sun's energy using a greenhouse-like approach could usher in an era of inexpensive electricity from the sun. The breakthrough ...

Input is received in the form of short-wave solar energy. This is called insolation. Only approximately 52 per cent of this insolation reaches the earth's surface. The rest is absorbed by water vapour ...