Negative Carbon Concrete

The most popular construction material on the planet is concrete and it turns out that the way we use it is not environmentally friendly. What if we changed that?

A company has created a great concrete variation that actually beneficial for the environment as it removes excess carbon!

While it functions much like commonly used Portland cement, boasting the same level of performance and the same average cost, Novacem’s concrete mixture uses magnesium silicate instead of calcium carbonates. The slinging of chemistry jargon might make this seem complicated, but the concept is simple: the creation of magnesium carbonates from magnesium silicates absorbs carbon dioxide. In other words, the production process is carbon negative. Furthermore, the production process of Novacem’s concrete is low-energy, allowing it to be sustained on biomass fuels.

Read more at Architizer.

Brazil: Wind Power Now Cheaper Than Natural Gas

In Brazil a recent energy auction has shown that wind power is cheaper than natural gas in the country, and also a better investment opportunity. The competitiveness of sustainable energy sources continues to impress everyone (even with the subsidized resource-extraction industries), it’s only a matter of time until other sustainable energy options get this cheap.

They even expect the cost of wind power to decrease in the coming years!

EPE president and chief executive Mauricio Tolmasquim said the auctions show that wind and natural gas are competitive, predicting wind prices will continue to fall in Brazil.

“That wind power plants have been contracted at two digit prices, below 100 reals per MWh, showcases the energy market competition through auctions,” he said. “That wind power could reach these lows versus natural gas was unimaginable until recently.”

The energy auctions for a total of 92 projects were the first in Brazil for 2011, and also featured biomass, hydro-electric and natural gas projects.

Investments amounted to 11.2bn reals in total, for 3,962MW of energy that is slated to start generating in 2014.

Read more at Business Green.

Organic Fertilizers Cost Effective and Better for Crops

Here’s a good story about how poor farmers in Kenya have shunned expensive chemical fertilizers for cheaper organic ones.

The organic fertiliser is sprayed onto maize two weeks after planting, and a month later.

Kenya Plant Health Inspectorate Services through Kenya Agriculture Research Institute have tested the fertiliser’s components and given an analytical report.

Mr Mosbei said the use of organic fertiliser, apart from rejuvenating soil quality, saves farmers about 70 percent of the cost of production.

“Whereas it takes a farmer in the North Rift 100kg of DAP and 50kg of top dressing to plant an acre of maize, all they require is only eight litres at Sh300 per litre for the same acre,” said Mr Mosbei.

“The organic fertiliser enriches the soil with minerals and maintains an ample PH level for the minerals required by plants for optimum yield,” added Mr Rono.

Read the full article.

Thanks Greg!

A Game That Protects Nature

A new Facebook game has been launched that allows you to help the planet while you play. It’s called MyConservationPark and it’s made by Good World Games.

MyConservationPark is a socially conscious Facebook game that places you in charge of building and managing a protected wildlife reserve. Create and sustain a livable habitat for your endangered heroes while defending your park from human and environmental threats. Purchase species and hire helpers to improve your animal’s habitat; the healthier your animal’s habitat, the more Conservation Cash and Good World Gold you earn. Your gameplay supports real life conservation efforts: MyConservationPark donates a percentage of all in-game purchase revenue directly to one of our non-profit partners’ conservation programs.

Play MyConservationPark
Good World Games

Heat Your Home By Hosting the Internet

As the internet continues its growth it consumes more and more electricity because larger server and data centres are required. Microsoft has come up with a brilliant idea to allow ‘the backbone’ of the internet to continue to grow while helping heat houses and providing a faster internet.

Microsoft has released a research paper that suggests that small data centers be put in people’s home and heat those homes using excess heat from the servers.

The research paper comes at a time where internet properties like Facebook, Google, and Microsoft are building huge data centers housing thousands of servers that simply pump their hot exhaust into the frigid air of Oregon, or other chilly states. There have been a few prototype data centers that use their waste heat to warm the houses in local towns, but Microsoft’s Data Furnaces take this idea to the next step: instead of building mega data centers that are efficient in terms of scale, Data Furnaces are micro data centers that are housed in the basements of regular homes and offices. These Data Furnaces, which would consist of 40 to 400 CPUs (between 1 and 10 racks), would be ducted directly into the building’s heating system, providing free heat and hot water.

The genius of this idea is that Data Furnaces would be provided by companies that already maintain big cloud presences. In exchange for providing power to the rack, home and office owners will get free heat and hot water — and as an added bonus, these cloud service providers would get a fleet of mini urban data centers that can provide ultra-low-latency services to nearby web surfers. Of course the electricity cost would be substantial — especially in residential areas — but even so, the research paper estimates that, all things considered, between $280 and $324 can be saved per year, out of the $400 it costs to keep a server powered and connected in a standard data center. From the inverse point of view, heating accounts for 6% of the total US energy consumption — and by piggybacking on just half of that energy, the IT industry could double in size without increasing its power footprint.

The main problem with Data Furnaces, of course, is physical security. Data centers are generally secure installations with very restricted access — which is fair enough, when you consider the volume and sensitivity of the data stored by companies like Facebook and Google. The Microsoft Research paper points out that sensor networks can warn administrators if physical security is breached, and whole-scale encryption of the data on the servers would ameliorate many other issues. The other issue is server management — home owners won’t want bearded techies knocking on their door every time a server needs a reboot — but for the most part, almost everything can now be managed remotely.

Read the rest of the article at Extreme Tech.