Arresting this incline will be the first step towards a sustainable system of international travel – but how could it be done? A frequent flyer tax would be relatively easy to implement but it could mean the richest can still afford to fly while the poorest are priced out.
Shared dockless electric scooters, or e-scooters, transport riders over short distances in cities. Ride share companies promote them as an environmentally friendly choice that reduces dependence on cars.
Your smartphone is far more powerful than the NASA computers that put Neil Armstrong and Buzz Aldrin on the moon in 1969, but it is also an energy hog. In computing, energy use is often considered a secondary problem to speed and storage, but with the rate and direction of technological advancement, it is becoming a growing environmental concern. When the cryptocurrency mining company Hut 8 opened...[Read More]
Nearly five billion people worldwide will use a smartphone by 2020. Each device is made up of numerous precious metals and many of the key technological features wouldn’t be possible without them. Some, like gold, will be familiar. Others, such as terbium, are less well-known. Mining these metals is a vital activity that underpins the modern global economy. But the environmental cost can be enormo...[Read More]
Uma Valeti makes a mean meatball. It’s perfectly round, sizzles when you fry it in a pan and tastes good. But unlike most meatballs, it was grown in a sterile brewery, not a cow. Memphis Meats, the company that he co-founded, has been called “the hottest tech in Silicon Valley” by Fortune magazine and is aiming to revolutionise food production. Dr Valeti is a cardiologist who was...[Read More]
The latest service to be revolutionised by drones might not be package delivery or internet connections but the far more valuable service of pollination. Researchers in Japan have been exploring the potential of using miniature drones covered with sticky hairs to act like robotic bees to counter the decline of natural pollinators. Writing in a paper in the journal Chem, the team demonstrated their...[Read More]