Vertical farm cuts energy use 75 per cent by using sunlight
7 April 2023
A vertical farm built inside a greenhouse in Texas can produce hundreds of thousands of heads of lettuce with significantly less energy than usual
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Premium
Windows filled with see-through wood layer help hold in heat
16 March 2023
A transparent material made from cellulose nanofibres and pockets of gas could replace air in double-glazed windows to improve thermal insulation
World’s largest office building with 'passive house' design to open
14 March 2023
The world’s largest example of an office building constructed to passive house standards – using airtight construction and high levels of insulation to cut energy use – is soon to open in Boston, Massachusetts
Heating water with computer servers could save UK homes £150 a year
5 March 2023
Data centres often waste the heat generated by servers, but UK firm Heata intends to bring servers into people's homes where the waste energy can be used to heat up people's hot water for showers
The 2000-watt energy saving challenge may be hard, but it’s worthwhile
8 February 2023
A Swiss vision of a low-energy society set a goal that is irresistibly simple: consume energy at a rate of just 2000 watts. It’s a great way to push us to use less power - good for the purse and the planet
Smart cladding could control whether buildings retain or emit heat
3 February 2023
A new material changes its infrared colour when a small electric current is applied, raising the possibility of buildings that store or release heat depending on outside temperatures
Online adverts estimated to use as much energy as a small country
18 November 2022
An AI that tracks digital ads’ energy consumption could help tech companies and advertisers to act more sustainably
AI can tell which buildings are energy efficient from the outside
4 October 2022
AI can use images from Google Street View and satellites to estimate building energy efficiency across entire cities. That could guide investments in reducing energy waste and fighting climate change
Ethereum Merge: What will the radical update mean for cryptocurrency?
13 September 2022
The electricity consumption of the Ethereum cryptocurrency rivals that of some countries, but a controversial update to how it works will slash this by 99 per cent – here's the low-down on what's going on
Why I love the proliferation of green roofs and living walls
24 August 2022
Green roofs have existed for more than 2000 years, but, along with living walls, they are becoming more popular – and provide major eco-benefits, writes Beronda L. Montgomery
