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One of the consequences of rising CO2 levels in our atmosphere is that levels also rise proportionately in the ocean, harming wildlife and changing ecosystems.  Heimdal is a startup working to pull that CO2 back out at scale using renewable energy and producing carbon-negative industrial materials, including limestone for making concrete, in the process, and it has attracted significant funding even at its very early stage. If the concrete aspect seems like a bit of a non sequitur, consider two facts: concrete manufacturing is estimated to produce as much as 8% OF all greenhouse gas emissions, and seawater is full of...

  Traditional power generation is not ideal for marine exploration challenges, but the solution may be in the water’s motion. Researchers have developed sphere-based triboelectric nanogenerators that can be incorporated directly into navigational buoys to provide electricity from ocean waves. To find a power source for buoys, look no further than the ocean itself. During the AIP Publishing Horizons — Energy Storage and Conversion virtual conference, which will be held August 4-6, 2021, Cátia Rodrigues, from the University of Porto, will discuss the prospects of using power generators in the ocean to address the energy concerns of marine exploration. The presentation,...