The streaming video platform Netflix has a carbon footprint that is like a city with 150,000 homes. To cut its greenhouse gas emissions to net zero by the end of 2022, it will use solar panels, electric vehicles, mobile battery units, LED lighting, renewable energy sources and local crews in filming. This may have other benefits, too: LED lighting reduces cooling needs on film sets, protecting actors' makeup. As well as reducing operational emissions, Netflix will invest in projects in Oregon, Canada and Kenya that remove carbon from the atmosphere by protecting grasslands and forests. Netflix, which earned $6.6 billion last quarter, says 160 million of its 204 million subscribers watched programs on sustainability last year.