Bitcoin and other digital currencies come with astonishing environmental costs

The company’s stock market arrival establishes Bitcoin and other digital currencies in the traditional financial landscape. It also elevates a technology with astonishing environmental costs. Hiroko Tabuchi discusses the energy implications in an article on the New York Times website.   In Coinbase’s Rise, a Reminder: Cryptocurrencies Use Lots of Energy The stock market debut … Continue reading Bitcoin and other digital currencies come with astonishing environmental costs

New EEA studies on the most environmentally friendly modes of motorised passenger transport in Europe

Train travel remains overall the most environmentally friendly mode of motorised passenger transport in Europe — in terms of GHG emissions — as compared to travelling by car or plane, according to two transport and environment studies published by the European Environment Agency (EEA) this week.   Motorised transport: train, plane, road or boat — … Continue reading New EEA studies on the most environmentally friendly modes of motorised passenger transport in Europe

Is hydrogen the silver bullet for reaching net zero emissions?

Tom Baxter, Honorary Senior Lecturer in Chemical Engineering at the University of Aberdeen asks an important question in an article on The Conversation website: hydrogen presents a compelling case for its widespread use to support net zero. So, what’s not to like about it? With the UK coming out with its hydrogen strategy soon, Baxter … Continue reading Is hydrogen the silver bullet for reaching net zero emissions?

Too many companies may be relying on offsetting their emissions through carbon credits rather than cutting their own

Emily Gosden writes on The Times website about a recent study that shows most businesses need to go further to improve the credibility of their targets and their plans for meeting them to avoid accusations of “greenwashing”. Out of the 2,000 largest publicly traded companies by sales, 417 have set net zero goals, the report … Continue reading Too many companies may be relying on offsetting their emissions through carbon credits rather than cutting their own

Making shipping ports more sustainable

This week with the Suez Canal blocked by a giant container ship (400 metres long), our thoughts turn to the sustainability of shipping. One element of shipping are the ports and Tony Robert Walker and Michelle Adams both of Dalhousie University in Canada write on The Conversation website about how ports can become more sustainable. … Continue reading Making shipping ports more sustainable

Guaranteeing that the future of steelmaking will be low-carbon requires action now

Our carbon neutral energy transition requires a lot of effort and imagination and there are many challenges in energy-intensive industries. Stephen Carr, Lecturer in Energy Physics, from the University of South Wales provides his views on how to eliminate emissions in steelmaking in an article on The Conversation website.   Steel is vital to the … Continue reading Guaranteeing that the future of steelmaking will be low-carbon requires action now

Global heating pushes tropical regions towards limits of human liveability

A new study suggests that large swaths of the tropics will experience dangerous living and working conditions if global warming isn’t limited to 1.5 degrees Celsius. Henry Fountain discusses the study in an article on the New York Times website.   Global Warming’s Deadly Combination: Heat and Humidity Here’s one more reason the world should … Continue reading Global heating pushes tropical regions towards limits of human liveability

Understanding carbon-free construction

Buildings and construction generate nearly 40% of global carbon emissions. As urbanisation skyrockets, the sector needs to find ways to rapidly decarbonise through net-zero building as required under the EU Energy Performance In Buildings Directive and to meet our long-term climate and energy objectives. Stuart Braun provides a good account to understanding carbon-free construction in … Continue reading Understanding carbon-free construction

Global action Is very far from what’s needed to avert climate chaos

New climate pledges submitted to the United Nations would reduce greenhouse gas emissions by less a fraction of what is needed, the UN announced. Fiona Harvey explains in an article on The Guardian website.   CO2 emissions: nations' pledges 'far away' from Paris target, says UN The first assessment of countries’ pledges to cut their … Continue reading Global action Is very far from what’s needed to avert climate chaos

The pledges countries made to reduce emissions as part of the 2015 Paris agreement are woefully inadequate

The commitments to meet our 2015 Paris agreement are simply not enough, according to a new study published this week. The study found that even if countries were to meet their existing pledges, the world has only about a 5 percent chance to limit the Earth’s warming to “well below” 2 degrees Celsius over preindustrial … Continue reading The pledges countries made to reduce emissions as part of the 2015 Paris agreement are woefully inadequate