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[ Cities Go Water Smart ]

Cities Go Water Smart

In the United States, our infrastructure isn’t designed to
handle the increased floods and droughts that come with global warming.
Consider Florida, where coastal
cities are spending billions of dollars
on pumps and desalination plants to
deal with flooding, or Denver, Colorado, which had
to restrict residential lawn watering
to two days a week throughout the
spring due to drought.

Clearly, we need to be smarter about our precious water
supply in the coming years. Many cities are already getting a jump start on
smart water solutions and their work provides models for other places dealing
with water challenges.

 

Bioswales

Bioswale

Photo of Vancouver: Payton Chung/Flickr

 

“Bioswales,” also known as rain gardens, absorb and filter
runoff from nearby pavement. Not only do they keep polluted rainwater from
reaching our rivers and lakes, they beautify our cities and prevent flooding. Check out this video of a bioswale
installed along a new bike trail in Indianapolis.

 

Solar Water Heaters

Solar water 2




Australian Homes with Solar Hot Water Heaters Photo: Green MPs/Flickr




 

Rather than using solar panels to create electricity, solar water
heaters
use them to… you guessed it, heat water. About 30 million homes in
China use solar water heaters and many municipalities in the US, like Palo
Alto, CA, Austin, TX, and Tallahassee, FL offer rebates to their residents if
they install them.

 

Porous (or Permeable)
Pavement

800px-Permeable_paver_demonstration

JJ Harrison / Wikimedia Commons

 

Another way to ensure rainwater is filtered before it
reaches our waterways is by letting it hit the ground rather than run along the
top of pavement. Porous pavement like that pictured above has tiny gaps that
allow the water to flow through.

 

Cisterns/Rain Barrels

Cistern

Nan Palmero/Flickr

 

About a third of the clean drinking water in the US is used
to water lawns. One way to halt this waste is to encourage the use of cisterns
and rain barrels which collect rainwater for things like gardening and flushing
toilets. The town of Northfield, MN rebates its residents 50% of the cost of
installing such systems. Many other towns in the US have similar programs, and
rain barrels are readily available at most home improvement stores.

 

Riparian Buffers

Buffer

Photo: USDA

Nothing manages water better than nature. Ensuring that our
waterways are buffered from development by conserving the vegetation around it
keeps them clean, provides vital habitat for plants and animals, and guards
against flooding. In just one project of its kind, EarthShare member Trust for
Public Land helped protect nearly 600 acres of land near the LaPlatte River,
which feeds into Lake Champlain. Because of this, the safety of the drinking
water supply for 68,000 people is ensured.

 

Green Roofs

Greenroof

kcxd/Flickr

 

Green roofs have multiple benefits: they reduce the heat
island effect in cities, filter air pollution, improve building efficiency, and much
more
. They also reduce the volume of storm water flowing into sewer
systems. Chicago leads the country in green roofs installed.

 

Learn more about the
many water-related issues we face as a society — and the proposed solutions:

The Issues:
Water, EarthShare

Building Green With
EarthShare Member Groups

The
End of Cheap Water?
, American Rivers

What
is Green Infrastructure
?, American Rivers

 

 

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