Sentences with phrase «of dams»

Energy production (i.e. through the burning of fossil fuels and the building of dams), is one the main causes of GHG emissions.

P.O. Box 942836, Sacramento, CA 94236 - 0001 Sharon Tapia, Chief Division of Safety of Dams, California Dept. of Water Resources, 2200 X Street, Room 200 Sacramento, CA 95818 Paul Shannon, Dam Safety Branch Chief, FERC 202-502-8784 Rm 62 - 63 [email protected] Douglas Boyer, Risk Informed Decision Making Branch, FERC Chief, FERC, 503-552-2709 Frank L Blackett Regional Engineer FERC, 100 First Street, Suite 2300 San Francisco, CA 94105 - 3084

In describing their findings, Do et al. report that across all three subsets of data, «more stations showed statistically significant decreasing trends [in streamflow] than statistically significant increasing trends,» which finding held regardless of whether the stations were filtered by the presence of dams or changes in forest cover.

In addition, PacifiCorp has installed more than 10 times the generation capacity of these dams in renewable wind and solar facilities over the past decade.

Certainly pumping groundwater must be partially responsible for sea level rise, and equally certainly, the building of dams and reservoirs has been responsible for preventing some sea level rise too.

Actually there is very little in the way of dams and walls etc..

Water reservoirs are favorite venues for tourism, but a new review reveals the dark side of these dams.

In practice, revolutionary left - wing parties in power — such as the communists in Russia / Soviet Union in the 1920s and 1930s and China in the 1950s and 1960s — were gung - ho in the building of dams.

SREX is accurate in that directly measuring trends in floods is extremely difficult, due to human intervention such as the creation of dams and other infrastructure.

Using powerful GIS software, we have generated a 3 - dimensional photo - realistic digital model of the Klamath River valley that depicts the landscape before and after the removal of two of the dams.

Though the exact number of dams being considered has not been specified, the proposal has already aroused opposition: Relocation Can't Compensate for Environmental, Spiritual Disruption The Guardian quoted Tibetan water resource researcher Tashi Tsering of the University of British Columbia:

Indeed, while some have pointed fingers at pollution and construction of dams — the Yangtze is home to the world's largest — mostly to blame are local fishing practices that sustain millions of people around the Yangtze but which involve harmful gill nets, rolling hooks or electrical stunning.

The United Nations has previously criticized Turkey for the effect of its dams on desert and marshland communities in Iraq and Syria, notes the Mideast environmental website Green Prophet, which tipped us off to the latest development.

Because of the dams, many of the remaining salmon spawn in downstream tributaries, so they would be destroyed.

Not sure of the effect of dams but it will no doubt be an interesting an needed study for the future.

The long term effects of dams can be difficult to visualize, especially when the future includes a changing climate.

The tour also includes animations, which show how over time melting glaciers in the Himalayas — an effect of climate change — may lead to higher flood and safety risks for communities living downstream of dams.

Other far - flung locations in this Talent in Texas show reflect art - making's increasingly migratory character, such as rural Maine — see Keliy Anderson - Staley's fascinating Off the Grid series depicting the homes of families living without plumbing or electricity — and Venezuela, where Miguel Amat shot his hauntingly ambiguous large - format photographs of dams used not just to generate electricity to «contain» the leisure activities of low - and middle - income local tourists who lack international travel options.

Hunger As A Teacher is part of Caroline Caycedo's project Be Dammed, 2010 — , which addresses the privatization of waterways through the construction of dams, and the environmental and cultural effects of extractivism.

If you do not want to explore the area, you can just sit and relax at one of our dams or try your at hand fishing (catch and release) or sit on the verandah and read a book.

Fisherman's is a cosy cottage situated on the edge of a Wattle tree forest, overlooking 1 of the dams.

Outside seating overlooking one of the dams on the farm.

Some of the trout caught in these types of dams have weighed in at over 14 pounds.

They are raised in the constant company of their dams and littermates, and while the dam will be separated at some point, the littermates usually remain together.

The key aspects of a DAMS are easy to replicate if all staff work the same way.

The main task of mechanical, civil and aerospace engineers is stress analysis as it helps in the protection of dams, tunnels, bridges, rocket bodies and other mechanical bodies to investigate the cause of structural failures.

This is a powerful documentary about the excessive construction of dams in the United States over the last 100 years, and how disruptive they have been to the environment, and to the life cycles of certain aquatic species (salmon, especially).

«When removal of the dams began we knew everything was going to start changing,» Freilich said.

The analysis revealed noticeably higher methane emissions from streams and rivers in watersheds marked with heavy agriculture, urban development or the presence of dams.

In the Mississippi River system, however, a series of dams on various upstream tributaries have reduced sediment supply to the delta, while levees on the lower part of the river have artificially channelized the flow, forcing sediments to be deposited beyond the delta in the deeper Gulf of Mexico.

This includes the impact of dams, roads mines and even of domestic animals from nearby settlements.

«Predicting the shape of river deltas: New method may help engineers determine coastal impact of dams and levees.»

Implementing these interactions is important to make the right decisions in the long term: How do people behave if flood risk decreases as a result of dams?

«Over the past 60 years, a myriad of dams have been built either to provide hydroelectric power, or for irrigation purposes, or as flood protection,» says Bernhard Lehner, a professor in McGill University's Department of Geography and the research director of the project.

That new approach could include strategies such as removing or setting back levees in some locations to promote seasonal flooding, strengthening regulations to reduce the discharge of contaminants into waterways, reworking the operations of some dams to facilitate fish passage, and changing federal and state laws to move conservation efforts to a broad, ecosystem - based approach.

«One of first things the settlers did was to clear the forests for agriculture and build tens of thousands of dams to run their mills,» says Walter.

Historical maps and manufacturing data helped them identify the location of dams and mills, and confirm their widespread use in early colonial times.

In the absence of dams to contain the spill, the oil traveled as far as 240 miles downriver.

Two of the most populous nations — China and India — are building hundreds of dams in a violently active geologic zone

Both fish species swim downstream during droughts and return during normal water flow, but the construction of dams, or stream fragmentation, prevents fish from returning upstream.

Drought conditions during most of the 21st century have forced water managers to plan for a day when the region's vast system of dams and reservoirs no longer have enough water to store.

Any of hundreds of dams could be in danger of bursting when the next big one hits.

Such seismically active regions are exactly where hundreds of dams 15 meters or higher are either under construction or being planned, most of them to supply hydropower to India or China.

«The plains minnow is still found in the Missouri River and could recolonize the Kansas River — where they used to be the most abundance species — if there was a fish passage through some of the dams.»

During the 20th century, thousands of dams were built on Mississippi River tributaries stopping the flow of fine silt, clay and other sediment from reaching the delta and seafloor to offset erosion.

When salmon encounter turbulent, fast - moving water - such as rapids or areas downstream of dams — they must move upstream using a behaviour known as «burst swimming» that is similar to sprinting for humans.

845,000 Number of dams in the world.

«This study will lead to better predictions of when and where rivers transport sediment, and to an understanding of how that sediment flow is affected by conservation and management efforts, such as the removal of dams,» Skog said.

«Our study is the first long - term and large - scale assessment of the impacts of dams and diverting water from the rivers and wetlands of the Murray - Darling Basin,» says study lead author UNSW Professor Richard Kingsford.

Natural wetlands are drying out, and the only people who are happy are the builders of dams, desalination plants and aqueducts.