Ten corporations, including BP, Shell and Microsoft, are setting up a climate tech accelerator to channel more funding to sustainability startups, which often struggle to raise investment. According to Jon Creyts from the Rocky Mountain Institute, the US-based environmentalist think-tank that will lead the accelerator, investors are so put off funding climate change tech that there's only been one hard tech company in the last decade to secure enough funding to be successful.

I believe that solar energy will enhance the returns of existing Real Estate Investment Trusts (REITs) and also create a whole new class of REITs. The limited number of deals that we have seen so far is just the trickle before the floodgates open.

Cryptocurrency is not an obvious candidate to cut greenhouse gas emissions. Just mining bitcoin, the primary blockchain-based cryptocurrency, emits about 22 megatons of carbon per year (the precise number is hard to pin down). But Apple's co-founder Steve Wozniak is backing a new cryptocurrency promising to do just that.

The goal is to internationalise Sinn Power's ocean hybrid platform as a complete off-grid energy solution to provide people near coasts worldwide with renewable energy. Sinn Power has been developing and building innovative wave energy systems since 2015.

As energy storage becomes an increasingly critical element of the modern grid, a wide range of business models are available on the market. Energy storage as a service (ESaaS), in particular, is gaining traction among service providers.

German manufacturing giant Thyssenkrupp has completed a successful, first-of-its-kind demonstration of running a steel furnace completely on hydrogen, a development that is likely to further dent the future prospects for the global coal industry.

Solar panels might seem like they're in direct competition with plants. One is catching sunlight to do photosynthesis, the other wants to take it to push electrons. Surely Highlander rules apply, and there can be only one on a plot of land, right? In reality, it's not a zero-sum game.