If you can’t measure it, how can you know if it’s growing? The green economy suffers from this problem. In the past few decades, and particularly in the past few years, the green economy has expanded tremendously. By how much exactly? Well, that depends on how you define this “green economy” and what data you include in its measurement. If we look at the number of megawatts of wind power capacity installed, or the number of solar panels shipped, or other indicators of sales and installations of renewable energy or energy efficient goods, we get a sense of the recent growth of the green economy. A recent report by Bloomberg New Energy Finance documents some of the growth of various energy industries, including natural gas, renewables, and efficiency.
