ground water, definition of

Climate change is a change in the statistical distribution of weather over periods of time that range from decades to millions of years. It can be a change in the average weather or a change in the distribution of weather events around an average (for example, greater or fewer extreme weather events). Climate change may be limited to a specific region, or may occur across the whole Earth.

In recent usage, especially in the context of environmental policy, climate change usually refers to changes in modern climate. It may be qualified as anthropogenic climate change, more generally known as global warming.

Wikipedia - Climate Change entry

• California is tapping water that rained 20,000 years ago to deal with epic drought
  California has been making headlines for the gravity of its drought. The Los Angeles Times reported that January was the driest month on record since 1895. Other sites including this one have explained that the Golden State has just one year of water...
• California is pumping water that rained on Earth 20,000 years ago
  California has been making headlines for the gravity of its drought. The Los Angeles Times reported that January was the driest month on record since 1895. Other sites including this one have explained that the Golden State has just one year of water...
• EPA to Provide Clean Drinking Water to Families Near Fracking Sites in Pennsylvania
  In a move that seems to admit the danger of hydraulic fracturing (or fracking) to ground water reserves, the EPA has decided to provide clean drinking water to four families in Dimock, Pennsylvania who say their water supply has been contaminated by a...
• Tech Talk: The Technology of Grouting
  For the last two technical talks I have been explaining how, by bolting rock layers around an opening, spraying concrete on the walls of the opening or a combination of both, one can stabilize openings underground...