by Graeme » Sat 22 Mar 2014, 18:02:41
Solar Power Is A Huge Water Saver (World Water Day Infographic)
$this->bbcode_second_pass_quote('', 'E')very year on this day since 1993, the community of nations has focused on the importance of fresh water and advocated for the sustainable management of freshwater resources. Severe droughts experienced recently in places like the American West, the Horn of Africa, Russia, China, and Australia have highlighted the fact that humans are rapidly using up the world’s freshwater supplies—and when they’re gone, they’re gone. We are spending one of our most vital resources in greater volumes every day.
This year, the UN’s Water Day theme rests on a crucial link largely invisible to most of us: water and the production of energy.
“Water and energy are closely interlinked and interdependent. Energy generation and transmission requires utilization of water resources, particularly for hydroelectric, nuclear, and thermal energy sources. Conversely, about 8% of the global energy generation is used for pumping, treating, and transporting water to various consumers.”
One Block Off The Grid recently developed a cool infographic (below) to illustrate how energy production depends on water. It shows water use by four of the most common energy sources: coal, nuclear, oil and gas, and solar. Solar comes out on top big time.
cleantechnica10 Shocking Facts about the World’s Water$this->bbcode_second_pass_quote('', '1'). 3.4 million people—mainly children— die as a result of preventable water-related diseases every year.
2. 1.2 billion people—nearly 20 percent of the world’s population—live in areas of physical water scarcity. What does that mean? Water withdrawals for agriculture, industry, and domestic purposes exceed 75 percent of river flows.
3. In developing countries, an estimated 90 percent of sewage and 70 percent of industrial waste is discharged into waterways without any treatment at all.
4. Energy is a major user of water. In the US, thermoelectric power plants account for nearly 50% of all freshwater withdrawals.
5. There have been 265 recorded incidences of water conflicts from 3000 BC to 2012. The past several years have seen an increase in the total number of reports of violent conflict over water.
6. The last time the United States did an assessment of the water resources at the federal level was in the 1970s.
7. It takes more than twice the amount of water to produce coffee than it does tea. Chicken and goat are the least water intensive meats to consume. More about how much water your diet consumes here.
8. The amount of coal produced worldwide in 2009 required an estimated 1.3 to 4.5 billion cubic meters (m3) of water for extraction and processing. Global production of natural gas in 2009 required an estimated 840 million m3 of water.
9. Because groundwater levels have dropped as much as 14 meters in the past half century in China, some sections of the Great Wall have been buried by sand. It’s estimated that some of the Great Wall will be gone in 10-20 years if action if not taken.
10. Nearly 12 percent of Native Americans on reservations and 30 percent of Alaska Natives lack plumbing.