The tech giants are stepping up to reduce their impact on climate change. Facebook and Google are becoming carbon neutral businesses, joining competitors Apple and Microsoft in committing to putting no excess carbon into the atmosphere. Google, which first committed to going carbon neutral in 2007, has retroactively offset all carbon it has ever emitted since its creation in 1998. It has also committed to being 100% powered by renewable energy by 2030. Facebook will be 100% powered by renewable energy this year. Microsoft led the way in January of this year, when it announced its plan to be carbon negative by 2030 and erase all of its historical emissions by 2050. Apple also plans to be carbon neutral by 2030.