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But that one is pretty easy...most flooding is temporary and rivers drain. So when the flooding is over and there's no more new water supplying the river, it will empty what it can. I don't see why it would take too long...just throw a leaf into a river and watch how fast it moves...that gives you an idea of the current and how fast the water is moving (and therefore draining).
But there are certainly potential pitfalls. We will look at these in more detail later in the lesson. For one, the pattern of cooling, just like for a large volcanic eruption, is not uniform. Resulting changes in atmospheric circulation cause heterogeneous temperature changes, with some regions cooling significantly, and other regions potentially warming. For example, parts of the Arctic might actually warm rather than cool, which would exacerbate Arctic sea ice loss and perhaps the rate of melting of the Greenland ice sheet. These same changes in atmospheric circulation lead to shifts in precipitation patterns, such that many continental regions are likely to dry, meaning adverse impacts on water supply .
Report summarizes opinions and issues surrounding SRM governance raised by global stakeholders
Originally posted by rickymouse
They could drain Lake Michigan and Lake Superior, that would be a temporary fix. They would keep the river up for a couple of years before going dry. I know there are some people thinking of this foolish concept, it's a good thing that we have safeguards to stop something like this from happening. The water in the Great Lakes is a reserve of drinking water in case it's needed, overusing it to water lawns and drain into the Ocean is crazy. In twenty years we will experience a severe water shortage everywhere in the USA. They can then filter it and package it in bottles to distribute as drinking water to everyone. That is if we don't keep poisoning the water.
The Great Recycling and Northern Development (GRAND) Canal of North America or GCNA is a water management proposal designed by Newfoundland engineer Thomas Kierans to alleviate North American freshwater shortage problems. The GCNA, which relies upon water management technologies used in the Zuider Zee / IJsselmeer and California Aqueduct, has been promoted by Kierans since 1959.
This plan arose as water quality issues threatened the Great Lakes and other vital areas in Canada and the United States. Kierans proposes that to avoid a water crisis from future droughts in Canada and the United States, in addition to water conservation, acceptable new fresh water sources must be found.
The premise of the GCNA is that fresh water run-off from natural precipitation will be collected in James Bay by means of a series of outflow-only, sea level dikes-constructed across the northern end of James Bay.
Originally posted by unphased
Originally posted by deadeyedick
This is now at an unprecedented length of time that we have been experiencing drought. If we do not get the levels of rain up soon the river will be shut down until the rain comes.....
Umm, I hope you're not suggesting weather engineering. That would be a terrible idea.
Originally posted by deadeyedick
200 Miles of Mississippi River Could Shut Down
(visit the link for the full news article)
Business and politicians are very concerned about the falling water levels on the Mississippi River and the impact it could have on surrounding states. HLN reports the river could get too low for barges to get through as early as next year. USA Today reports the portion of the river that could get shut down spans 200 miles. The Christian Science Monitor says the first official estimate of drought damages from the U.S. Department of Agriculture range from $60 billion to $100 billion
Mississippi River Closed Due to Drought