For centuries residents of Guiyu s four villages had scratched out a living farming rice along the Lianjiang River.
Others acid-stripped circuit boards in caustic baths near the river to salvage bits of gold. No one wore protective clothing.
Puckett estimated that just more than half of the material processed in Guiyu actually got recycled judging from the tons of plastic leaded glass and burned circuit boards discarded near waterways and in open fields.
and drainage tiles most ended up in landfills incinerators or the ocean. But by the time he saw Puckett s film Biddle had achieved quietly
School of engineering and Applied sciences (SEAS. It is fully within our power as a nation to reduce our impact.
The team of scientists--comprising researchers from Harvard SEAS the National park service the USDA Forest Service the U s. Environmental protection agency
but they're integral for everything else that's dependent on them explains lead author Raluca A. Ellis who conducted the research as a postdoctoral fellow at Harvard SEAS.
In addition nitrate pollution is a health hazard and also causes oxygen-depleted'dead zones'in our waterways and oceans.
Our idea is to use an enzyme cascade to break up the bonds in cellulose enabling their reconfiguration as starch.
The organic salts used to make GUMBOS are not the familiar organic sea salt products sold for cooking and other uses.
but foster Gulf of mexico Dead Zonenew ORLEANS April 9 2013#The most serious ongoing water pollution problem in the Gulf of mexico originates not from oil rigs as many people believe but rainstorms and fields of corn and soybeans a thousand
An expert on that problem#the infamous Gulf of mexico#oedead Zone##today called for greater awareness of the connections between rainfall and agriculture in the Midwest and the increasingly severe water quality problems in the gulf.
#oethe oxygen disappears as a result of fertilizer that washes off farm fields in the Midwest into the Mississippi river.
and soybeans grow it stimulates the growth of plants in the water#algae in the Gulf.
The Gulf also seems to be more sensitive to the nitrogen and phosphorous fertilizers that wash down the Mississippi river
and the Atchafalaya River today than it was in the past. Concentrations of fertilizer that caused a relatively small amount of oxygen depletion now are having a more profound effect.
Fish and shellfish either leave the oxygen-depleted water or die causing losses to commercial and sports fisheries in the Gulf she noted.
Dead fish sometimes wash up onto beaches with a negative impact on recreational activities and tourism.
Oil spills and other local pollution compound those negative effects on marine life Rabalais noted By day 77 of the Deepwater horizon disaster for instance the oil slick had covered about one-third of the Dead Zone making it even more inhospitable.
I annually bring water from the Gulf of mexico dead zone to a water ceremony at the Unitarian church in Baton rouge where it is combined with waters from others from all over the world and locally.
Each year I bring my intent to continue to work for water quality in the Mississippi river watershed and its coastal ocean.
but surprisingly short for a drop of water from the Gulf of mexico to be transported inland and then flow with other droplets down the river to the ocean.
protecting water resources and restoring an economically vital coastline we will need to invest in the characterization of our water microbiological communities and shift the pollution science paradigm toward an understanding of risk and resilience under global change.
This paper also describes research at Clear Creek watershed (270 km2) a tributary of the Iowa River in eastern Iowa to create an environmental observing facility
The effects of acid rain can propagate through aquatic ecosystems such as lakes rivers and wetlands and terrestrial ecosystems including forests
and soils negatively impacting ecological health. Researchers have used now publicly accessible data collected weekly or monthly at numerous monitoring sites during the period from 1980-2010 to track wet deposition of nitrate and sulfate near several U s. and East Asian cities.
They are now moving east from Michigan killing ash trees on the Eastern Seaboard as far south as North carolina.
In the GCEP report Field and lead author Jennifer Milne describe a suite of emerging carbon-negative solutions to global warming--from bioenergy technologies to ocean sequestration.
The report also explored the possibility of sequestering carbon in the ocean with a particular focus on the problem of ocean acidification
Ocean acidification results from the increased uptake of atmospheric CO2 which causes seawater to become more acidic.
and other minerals could be added to the ocean to reduce acidity and sequester atmospheric CO2 absorbed in seawater.
Although the potential for CO2 sequestration in the ocean is associated large the risks to the marine environment need to be assessed adequately the authors concluded.
If we can put an anaerobic barrier at the point where a lagoon drains into the environment we will essentially exert selective pressure for the loss of antibiotic-resistant genes
His study of the Haihe River in China funded by the Chinese government and published last year found tetracycline resistance genes are common in the environment there as well.
We tested water and river sediment and couldn't find a sample that didn't have said them he Our philosophy in environmental engineering is that an ounce of prevention is worth more than a pound of remediation Alvarez said.
and through clever engineering we've taken its capabilities a step further says lead author Mathias Kolle a postdoctoral fellow at the Harvard School of engineering and Applied sciences (SEAS).
Professor of Materials Science at Harvard SEAS and Kolle's adviser. Aizenberg is also Director of the Kavli Institute for Bionano Science and Technology at Harvard and a Core Faculty member at the Wyss Institute for Biologically Inspired Engineering at Harvard.
UHF is referred often to as the beach front portion of the wireless spectrum because the signals travel for miles and one popular idea for the liberated portion of the spectrum is for open wireless access points like those used for today's Wifi hotspots.
Dr. Mahalingam studied that more closely in association with the U s. Forest Service while at the University of California Riverside.
and Thames Basin Heath it can be affected by development such as housing and as part of the planning process developers must now provide data on presence
And because of the country's climate and geography irrigation is now widespread burdening rivers and groundwater supplies.
They found that domestic corn trade leads to significant losses of irrigation water resources (such as rivers reservoirs and groundwater.
and in the ocean storing carbon dioxide in a liquefied form in underground geological formations and wells increasing Earth's cloud cover and solar reflection.
The researchers evaluated the idea of adding iron to oceans in order to stimulate the growth of algae
because less than a quarter of the algae could be expected to eventually sink to the bottom of the ocean which would be the only way that carbon would be sequestered for a long period of time.
The study predicted that the rest would be expected to be consumed by other sea life that respire carbon dioxide
Among the technologies evaluated in situ are floor type in cattle housing use of additives in slurry storage manure turning flexible lagoons for collective slurry storage biowashers for gases at the outlet of air ducts of the sheds
When plants die some of their biomass is trapped in areas that are devoid of oxygen such as the bottom of lakes.
Sunlight hits the ocean heats it up and energy has to leave the ocean through evaporation he explained.
If you think about all the ice on top of Mt everest--who took this huge amount of material up there?
Ecosystem needs--lakes and rivers need a certain amount of water for them to survive.
like the East and West Coasts. I don't think, from a large consumer perspective, he said,
plus a lock of land every 10 miles--allowed California to be connected to the Eastern Seaboard in just seven years.
and in other endangered habitats, such as coral reefs and ocean islands. With local people trained to do the footwork
There's a lot of money on the West Coast to do new things. Seven out of 10 companies these entrepreneur guys start never succeed.
but you have to realize that with the BP-Transocean oil spill we just poisoned half the food chain down there in the Gulf of mexico.
You can use river water, certainly well water, but when you start getting into lower grade water,
And there are a lot of plants in the U s. on the sea taking advantage of that. But there's also the environmental concern in putting warmer water back into the ocean--the long-term fate of the ecology of the ocean.
That's an issue. Smartplanet: Let's get back to your three points: technology, economics, policy. What can we do on Capitol hill?
Guan Haisen (pictured top), an appraiser who works at Beijing Antique City, imports the Ocean Optics LIBS system from the U s,
We move more earth and stone than all the world rivers. We have left a fine layer of plutonium
not including the oceans. Can you unpack this stat? DB: Essentially 43%of the seven continents is devoted now to feeding humanity.
and then letting it run off into the ocean. And then it goes into the cycle
like finding way to desalinate sea water cheaply and easily. If we did that we would not have to worry about depleting aquifers
because it would take us a very long time to deplete all the water in the oceans.
The good news is that we â â¢ve been dealing with sea level rise and weird weather for most of human history.
and can build sea walls or shift populations. The majority of people driving climate change those are the rich will adapt fine, no problem.
There are projects testing out the possibility of seeding the ocean with iron; this is a fertilization scheme.
Ocean plankton are one of the biggest CO2 sucks on the planet, and if you fertilize them there might be more blooms.
On the Salinas Valley farm, entrepreneurs with Mountain view-based startup Blue River Technology are trying to show that the Lettuce Bot can
She can picture a future beach assault situation similar to the U s. invasion of Normandy,
we send in robots on the beach and let the robots take the fire, and then set up a logistics camp
Unlike corn or even sugar ethanol, halophyte algae (algae that grow in saltwater) do not compete with food stocks for freshwater. oewhen the cost of pumping ocean water into so-called wasteland regions such as the Sahara
halophyte algae farmers could use solar-powered pumps to move water up from sea level or even up from underground aquifers such as the Nubian sandstone aquifer system that sits beneath desolate regions of Libya, Chad, and Sudan.
Tidal-current turbines and tidal-stream turbines tapping the power of sea systems like the Gulf stream could provide energy for power-hungry states such as Florida.
which flows at 1, 000 times the rate of the Mississippi river, might be tapped for power,
The Center of Excellence in Ocean Energy Technology at Florida Atlantic University The Issue: Hunger The earth population is projected to increase by 2. 5 billion people in the next four decades,
Individuals (mostly women and children) are forced often to trek long distances to lakes ponds, or public water pumps in other villages,
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