This week’s climate summit in San Francisco should address shipping, the world’s sixth-largest carbon-emitter
Posted on - 2018-09-11
This week’s climate summit in San Francisco should address shipping, the world’s sixth-largest carbon-emitter
Posted on - 2018-09-11We are undeniably using up what little remains of Earth’s petroleum, and because of that, it’s getting expensive. To reduce fuel costs, shipping companies are turning back to sailboats. Yes, seriously. Sailboats. But they don’t look like any sails you’ve seen before.
You know sails – most of the time big rectangle things, sometimes big triangle things, almost always (but not always-always) made out of cloth. But while those things in the top gif don’t look like your normal sails, that’s what they are. They just don’t work like any sail you’ve ever seen before.
Most sails you’ve seen rely on the wind directly acting against them to provide propulsion. But these new types of sails, known as “rotor sails” rely on a physics principle called the Magnus Effect.
Posted on - 2018-09-01Directing investment towards clean public transport and more vehicle efficiency can generate major and rapid benefits in a range of areas. It could create up to 23 million additional jobs a year. It could tackle congestion, cutting the wasted hours spent sitting in traffic by up to 30%. It could reduce by over 80 per cent the 1.3 million deaths and 78 million transport-related injuries worldwide each year.
Investing in city cycling infrastructure can save five times the cost of the investment by improving public health and reducing traffic congestion. Extrapolating across Europe, the health benefits from cycling could be worth 35–136 billion US dollars annually.
Posted on - 2018-08-31