Energy & Green Tech news

Energy & Green Tech

Cost-effective, high-capacity and cyclable lithium-ion battery cathodes

Charge-recharge cycling of lithium-super-rich iron oxide, a cost-effective and high-capacity cathode for new-generation lithium-ion batteries, can be greatly improved by doping with readily available mineral elements.

Engineering

Researchers find use of olivine in cement production could result in carbon negative concrete

A small team of materials scientists and environmental engineers at Imperial College London has found that using olivine in cement could result in carbon-negative concrete. In their study, published in the journal Royal Society ...

Engineering

How green cities could remove CO₂ from the atmosphere

More than a thousand cities around the world now have "net zero" pledges: they want to emit only as much CO2 into the atmosphere as they can simultaneously recapture. An elaborate meta-study has now summarized the state of ...

Energy & Green Tech

Electricity from farm waste: How biogas could help Malawians with no power

In sub-Saharan Africa, over 600 million people (more than 50% of the population) are without access to electricity. Malawi has one of the world's lowest electricity access rates—just 14.1% of the total population have access ...

Energy & Green Tech

Microsoft makes renewable energy deal with Canada's Brookfield

Microsoft and Canada's Brookfield Asset Management have struck an agreement for the development of renewable energy that could make one of the biggest corporate purchases of green energy to date, the companies said on Tuesday.

Energy & Green Tech

A new roadmap to close the carbon cycle

A major approach to achieving net-zero carbon emissions relies on converting various parts of the economy, such as personal vehicles and heating, to run via electricity generated from renewable sources. But carbon cannot ...

Energy & Green Tech

Is bioenergy ever truly green? It depends on five key questions

Plans to revive an old coal-fired power station using bioenergy are being considered in the Hunter region of New South Wales. Similar plans for the station have previously not gone ahead. As we grapple with decarbonization, ...