Who said the butterfly effect couldn't apply to renewable energy? Though wind farms are considered pretty green on the energy-generating spectrum, it looks like they, too, have an impact on the planet. According to a study published today in the journal Nature Climate Change, turbines can raise the local temperature -- albeit slightly. From 2003 to 2011, researchers monitored satellite data for west-central Texas, which is home to 2,350-plus turbines and four of the world's largest wind farms. In that decade, scientists observed a temperature increase of 0.72 degrees in wind farm regions compared to areas without turbines. That warming trend was especially marked at night, when the temperature difference between the ground and the air is highest. The temperature increase was also higher in winter; researchers say that these cooler, windier conditions cause turbines to generate more electricity and therefore create more heat. Since the study didn't find any change in daytime temperatures, it looks like we don't have to ring the global warming alarm just yet.
Study says wind turbines raise surrounding area temperature, but only at night originally appeared on Engadget on Mon, 30 Apr 2012 14:47:00 EDT. Please see our terms for use of feeds.
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With all the chatter about Billion dollar valuations -- like Instagram, Evernote, Splunk -- combined with recent S1 filings and IPOs, the topic of tech company valuation is coming to the forefront of people?s minds. Specifically related to the software industry, the growing number of SaaS IPO candidates of late is signaling an important shift in the way that enterprise software is built and sold. It also indicates that the subscription business model is here to stay. What does this shift towards a subscription economy means for startups, investors and the IPO landscape? First of all ? get Instagram out of your mind. The price it sold for is not relevant to us mere mortals who are building B2B software businesses. For all good, non-bubble reasons, SaaS companies need tens of millions in revenue, high growth, and solid business fundamentals. What you may notice though, is that revenue may be lower than what we?ve become accustomed to during the last few years of IPO drought.
If you spent any time in high school thinking about ley lines and bio-implants, you were probably a Shadowrun player. The game, which petered out after a disastrous run as a PC/Xbox game in 2007, brought the high-tech of William Gibson to the magical realms of Mr. Gygax. It was, in short, pretty cool. A 
