Twitter is getting serious about its bot problem. From a report: Hours after a massive bot purge that prompted the #TwitterLockOut hashtag to trend, the company is announcing new rules for developers meant to prevent bots from using third-party apps to spread spam. According to the new rules, developers that use Twitter's API will no longer be able to let users: Simultaneously post identical or substantially similar content to multiple accounts. Simultaneously perform actions such as Likes, Retweets, or follows from multiple accounts Use of any form of automation (including scheduling) to post identical or substantially similar content, or to perform actions such as Likes or Retweets, across many accounts that have authorized your app (whether or not you created or directly control those accounts) is not permitted.

Vox reports on Amazon's recent push for "corporate sustainability": It plans to have 15 rooftop solar systems, with a total capacity of around 41 MW, deployed atop fulfillment centers by the end of this year, with plans to have 50 such systems installed by 2020. Amazon was the lead corporate purchaser of green energy in 2016. That year, it also announced its largest wind energy project to date, the 253 MW Amazon Wind Farm Texas. Overall, the company says, it has "announced or commenced construction on wind and solar projects that will generate a total of 3.6 million megawatt hours (MWh) of renewable energy annually."
But here's the most interesting part. GeekWire reports: Amazon is moving ahead with a unique plan to use heat generated from data centers in the nearby Westin Building to warm some of its new buildings downtown. The system transfers the heat from the data centers via water piped underground to the Amazon buildings. The water is then returned to the Westin Building once it's cooled down to help cool the data centers. The setup will be unusual. "Certainly there are other people using waste heat from server farms but you don't hear a lot about tying it in with buildings across the street from each other," said Seattle City Councilmember Mike O'Brien.