Improved Air Conditioner Beams Heat Into Space


Air conditioner suck up a lot of energy in hotter months by dumping heat from inside buildings to the outside, ironically heating up neighbouring locations. A Stanford research team developed a more efficient cooling system for AC by pre-cooling water that circulates through the machine. It cools water during the night by essentially beaming the eat out into space, which surprisingly uses less energy than current solutions.

For the new fluid-cooling system, the researchers made radiative panels that were each one-third of a square meter in area; they attached the panels to an aluminum heat exchanger plate with copper pipes embedded in it. The setup was enclosed in an acrylic box covered with a plastic sheet.

The team tested it on a rootop on the Stanford campus. Over three days of testing, they found that water temperatures went down by between 3- and 5 °C. The only electricity it requires is what’s needed to pump water through the copper pipes. Water that flowed more slowly was cooled more.

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Mars Terraforming Earth

coffee and chocolate

Mars, the company behind popular chocolate bars like Snickers and Twix has pledged $1 billion dollars to fight climate change. This isn’t a company randomly pledging money to help communities or specific issues address climate change, instead they are focussing on themselves. Mars is the largest chocolate maker on the planet and are looking at ways that they can save the planet (and money) by changing what’s happening in their supply chain. Already the company has invested in renewable energy for their production facilities.

Although, some might claim this is just to stop their chocolate bars from melting.

Mars, the maker of Snickers, Twix, and M&Ms, has pledged to invest $1 billion over the next few years to fight climate change. The sustainability drive includes investment in renewable energy, food sourcing, cross-industry action groups, and farmers.
Barry Parkin, Mars’ Chief Sustainability Officer, warned that the consequences of inaction include “more extreme weather events…causing significant challenges and hardships in specific places around the world, whether that’s oceans rising or crops not growing successfully.” “We believe in the scientific view of climate science and the need for collective action,” he added.

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Wind Power: One of the Cheapest Sources of Energy

wind turbine

Sustainable and renewable energy sources continue to get more cost effective when compared to fossil fuel based energy. This is fantastic since the economics of scale are really kicking into effect around solar and wind technology. Thanks to better and more production wind turbines have become more effective and energy grids have gotten more capable of incorporating the inconsistent energy production.

Improvements in wind turbine design have not only helped to increase the maximum power they can produce (or their generating capacity), but also their capacity factor, a measure of how often they actually produce energy. The average capacity factor of projects installed in 2014 and 2015 was over 40 percent — meaning they produced 40 percent of the maximum possible energy they could produce if it were very windy 24 hours a day, 365 days a year.
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As the exceptionally low price of U.S. wind energy drives further wind farm installations, it will be interesting to see how U.S. grid operators manage the challenge of integrating wind energy with the rest of the grid. So far, at least, they’ve been successful. But policymakers and regulators should be cognizant of the need for new transmission capacity and other grid upgrades to integrate wind as more turbines are installed in more places. Identifying the lowest cost investments to integrate the most renewable energy is not a simple task — but it will become increasingly vital as renewables throw off the “alternative energy” label and become a major contributor to the U.S. electricity supply.

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Berlin, Sponge City

Germany’s capital is becoming a sponge to stop flooding. It might seem counterintuitive to want to gather more water in order to stay dry, but that’s exactly the plan. Currently the city of Houston is suffering some of the worst flooding that its ever seen thanks largely to poor planning around water (like using highways to channel water). Berlin wants to avoid such trauma by working with water than against it.

The idea is simple and practical: do what nature does and store water in plants.

Germany’s Transition Away From Coal Helped Jobs and Culture

industry

For years Germany’s transition from coal to sustainable energy has impacted communities. Many feared that jobs would be lost during this transition so plans were put in place to help workers and communities transition too. Throughout the Rhine valley coal plants have been closed down and their place new sustainable energy jobs have popped up alongside new places for arts and culture. The removal of coal power has brought a tourism boom amongst other successes.

The mines themselves have even become a cultural stage. A museum and gallery at Zollverein attracts over 250,000 visitors a year, and several other mines host music concerts, food and cultural festivals. In the nearby city of Bochum, an old industrial plant — now the site of the German Mining Museum — is surrounded with stately homes flanked by lush gardens. The change hasn’t gone unnoticed; the Ruhr was officially named Europe’s cultural capital in 2010.

The Ruhr also has become attractive for businesses to invest, say Switala. Zollverein, like many former mines, is now also home to several businesses. Artists, jewelry designers, choreographers, design firms and tourism companies are just a sampling of those who have made the trendy industrial space their home.

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Thanks to Delaney!