BBC News
By Suzanne Bearne
image captionAlya Annabi became vegetarian after tracking her carbon footprint
Increasingly concerned about the environment, for the past few years Alya Annabi, 26, has taken steps to live a more sustainable lifestyle, with the digital learning manager refilling goods at plastic-free stores, making her own skincare from scratch and composting her kitchen waste.
But in the past year Ms Annabi has decided to take her environmental mission to the next level by tracking her carbon emissions.
Using an app called Capture, which calculates users monthly CO2 targets by asking a series of questions such as how many flights per year you take and what kind of diet you adhere to, and using GPS tracking to predict emissions from transportation, Ms Annabi is able to view an estimate of her carbon environmental impact.
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BBC News
By David Silverberg
image captionDrilling for hot rocks - a plentiful energy source
Drilling holes into an extinct volcano might sound like an unusual start to an energy project.
But that s what J Michael Palin, a senior lecturer at the University of Otago in New Zealand, is planning to do.
His project involves drilling two boreholes to a depth of 500m (1,600ft) and monitoring the rock to see if it is suitable to provide geothermal energy. It has been known for some time that the Dunedin region has surface heat flow about 30% higher than expected based on previous measurements, says Dr Palin.
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BBC News
By Chris Baraniuk
Last year was a record breaker for the UK s wind power industry.
Wind generation reached its highest ever level, at 17.2GW on 18 December, while wind power achieved its biggest share of UK electricity production, at 60% on 26 August.
Yet occasionally the huge offshore wind farms pump out far more electricity than the country needs - such as during the first Covid-19 lockdown last spring when demand for electricity sagged.
But what if you could use that excess power for something else? What we re aiming to do is generate hydrogen directly from offshore wind, says Stephen Matthews, Hydrogen Lead at sustainability consultancy ERM.