Renewable energy sources are surely cleaner than carbon-based or nuclear energy, but there are a few more or less inevitable drawbacks which make them unappealing for a lot of people: solar farms scorch birds in midair, meanwhile wind turbines confuse and often strike them to death. Addressing the second issue now…
The US may make big turbines, but the UK knows how to make lots of them: The world’s biggest wind farm is to be constructed just off the cost of England.
The London Array—the world's largest offshore wind farm—started operating on April 8, 2013, about twenty kilometers (12 miles) off the coast of Kent and Essex, England. Looking at these pictures taken from space gives you a perfect idea of the Array's amazingly vast extension.
Wind power, one the oldest and most established forms of alternative energy, might not be as green as we thought. A new study in the US has linked wind farms to local temperature rises of over 0.7°C—enough to change local weather and climate.
Green issues are obviously close to Google's heart, as they've followed up last July's move into the renewable energy business with a $100 million investment in Shepherds Flat Wind Farm in Oregon, which you can see being worked on above.