Microsoft says it will extract more CO2 from the environment than it emits It will invest $1 billion into carbon capture technology in the next four years The company aims to become 'carbon negative' by 2030 It also aims to use entirely renewable energy by 2025 Microsoft says it's going to take its commitment to being carbon neutral one step further.In an announcement on Thursday, the tech giant says it will strive to be 'carbon negative,' meaning it will attempt to remove more CO2 from the atmosphere than it emits using a mixture of renewable energy and carbon-cleansing technology that pulls emitted fumes...