According to a report released Monday by President Obama’s Council of Economic Advisors, jobs in the environmental sector are increasing at a faster rate than those in other sectors, and are set to experience “tremendous growth” between now and 2020.

The report, which forecasts the changing labor market in the years ahead based on recent market data, identifies green jobs as part of a growing sector that is transforming the economy, according to a White House official. It emphasizes “worker flexibility” as key to an expected economic uptick.

New environmental sector jobs are expected to include ‘blue collar’ work and “pay more on average than otherwise comparable jobs.” They are also considered “more likely to be…unionized” and instrumental in the growth of a secure middle class.