Geothermal heating and cooling is achieved by accessing the constant temperatures deep underground and then using water to circulate that temperature up above.

A project centered around the development of a subsea wave energy converter has taken another step forward after its two major constituent parts were joined together at a facility in Scotland. According to a statement from AWS Ocean Energy on Wednesday, the assembly, which it described as "a critical milestone", took place last week.

Few bitcoin projects illustrate the cryptocurrency's enormous climate impact better than the Greenidge power plant in upstate New York. The once-abandoned power plant was bought by private equity firm Atlas Holdings and retasked. A significant portion of Greenidge's electricity no longer powers nearby homes or businesses; rather, the plant's smokestacks are increasingly pouring pollutants into the atmosphere in the service of mining bitcoin.