British-Australian mining company Rio Tinto is set to debut a novel carbon-free aluminum smelting technology at its facility in Canada. This initiative aims to accelerate the shift to more environmentally friendly production methods and significantly reduce greenhouse gas emissions.

The Elysis technology, which replaces traditional smelting processes, promises to eliminate all direct greenhouse gases, producing oxygen instead. This groundbreaking technology will be installed at Rio Tinto’s Arvida smelter in Quebec, where the company will design, engineer, and build a demonstration plant with ten pots operating at 100 kiloamperes (kA).

Living brain cells wired into organoid-on-a-chip biocomputers can now learn to drive robots, thanks to an open-source intelligent interaction system called MetaBOC. This groundbreaking project aims to integrate human brain cells with artificial bodies.

Biocomputing is one of the most astonishing frontiers in emerging technology, enabled by the fact that our neurons communicate using electrical signals, the same language as computers. Human brain cells, grown in large quantities onto silicon chips, can receive electrical signals from a computer, process them, and respond. More impressively, they can learn. The concept was first demonstrated in the DishBrain project at Monash University, Australia. Researchers grew about 800,000 brain cells onto a chip, placed it into a simulated environment, and observed as this biocomputer learned to play Pong within five minutes. This project was swiftly funded by the Australian military and evolved into a company called Cortical Labs.

When Rodney Brooks talks about robotics and artificial intelligence, it’s worth paying attention. As the Panasonic Professor of Robotics Emeritus at MIT and a co-founder of influential companies such as Rethink Robotics, iRobot, and Robust.ai, Brooks has a wealth of experience and insight. He also led the MIT Computer Science and Artificial Intelligence Laboratory (CSAIL) for a decade, starting in 1997.

Brooks frequently makes predictions about AI’s future and even keeps a scorecard on his blog to track his accuracy. Despite the current excitement surrounding generative AI, Brooks suggests it may be time to temper expectations. He acknowledges the technology’s impressive capabilities but warns that it isn’t as all-encompassing as some believe.

A Northwestern University-led team of engineers has discovered an innovative way to store carbon dioxide (CO2) in concrete by using a carbonated water-based solution during the manufacturing process. This new method not only helps sequester CO2 from the atmosphere but also produces concrete with uncompromised strength and durability.

In laboratory experiments, the process achieved a CO2 sequestration efficiency of up to 45%, meaning nearly half of the CO2 injected during concrete manufacturing was captured and stored. This breakthrough could significantly offset CO2 emissions from the cement and concrete industries, which are responsible for 8% of global greenhouse gas emissions.