Last year was the Earth's warmest since record-keeping began in 1880, the U.S. National Oceanic and Atmospheric Administration and NASA said Wednesday.

It's been clear for quite some time that 2015 would steal the distinction of the hottest year from 2014, with 10 out of the 12 months last year being the warmest respective months on record -- and those records go back 136 years. — CNN

...this week's higher temperatures and sunny skies serve as a reminder that one watery week doesn't erase the years of hardcore drought that have dragged on in SoCal and all of California.

The record-breaking rains are a reason to be excited, certainly, but "Although this is a favorable start to the year, there are still 3-4 more critical months that will determine how much rain/snow will fall and accumulate during the wet season," [says] David Miskus, a meteorologist ... — Curbed

The appetite of western consumers for home furnishings has reached its peak – according to Ikea, the world’s largest furniture retailer.

The Swedish company’s head of sustainability told a Guardian conference that consumption of many familiar goods was at its limit.

“If we look on a global basis, in the west we have probably hit peak stuff. We talk about peak oil. I’d say we’ve hit peak red meat, peak sugar, peak stuff … peak home furnishings,” Steve Howard said [...] — the Guardian

Tiny homes aren’t a solution. Small living is another superficial fix, brandishing clever design and appeals to nostalgia while ignoring the underlying social relations which cause homelessness, housing insecurity, and environmental degradation. — JACOBIN

Using drones for aerial photography has been a source of controversy for several years now. But amid increasing concerns over privacy and safety, some conservation scientists are hoping drone owners will help them to document sea level rise.

With an expected increase in storm activity in the Pacific Ocean this winter, scientists believe they are getting a glimpse of the impacts of climate change on coastlines. — scpr.org

Congratulations are due to Olafur Eliasson who's just been given a Crystal Award for his "exemplary commitment to improving the state of the world". 

Ahead of the World Economic Forum, which takes place later this week in Davos, Eliasson was singled out for particular praise major works including The New York City Waterfalls, Ice Watch, The Weather Project, and Riverbed. — phaidon.com

Researchers at MIT have shown that by surrounding the filament with a special crystal structure in the glass they can bounce back the energy which is usually lost in heat, while still allowing the light through...

Usually traditional light bulbs are only about five per cent efficient, with 95 per cent of the energy being lost to the atmosphere. In comparison LED or florescent bulbs manage around 14% efficiency. But the scientists believe that the new bulb could reach efficiency levels of 40% — the Telegraph

Could roof-straddling “sky walks” soon be coming to Stockholm? A new plan proposed for the Swedish capital would see a large slice of its city center built over with densely packed towers, joined at their peaks by a dramatic zigzag of tree-lined, open air gangways...

Sweden’s capital is one of the fastest growing cities in Europe... If it isn’t going to sprawl unmanageably or become overcrowded, it’s going to have to find somewhere to put everyone... — City Lab

According to a team of researchers at MIT, both scenarios may be possible before long, thanks to a new material that can store solar energy during the day and release it later as heat, whenever it’s needed. This transparent polymer film could be applied to many different surfaces, such as window glass or clothing.

[...] the new finding could provide a highly efficient method for storing the sun’s energy through a chemical reaction and releasing it later as heat. — news.mit.edu

In this rush to urbanize, China also has an enormous opportunity to move toward a “new pattern of urbanization.” Chinese cities could fulfill their potential to be the most energy-efficient human habitat rather than stoking energy consumption. — NextCity.org

Researchers at Cranfield University in the UK have created a prototype of a toilet that works without being connected to water or sewage systems, and that can generate electricity and clean water as it composts waste. [...]

The Nano Membrane Toilet, which has been developed with funding from the Bill and Melinda Gates Foundation, would be a kind of ‘super-toilet’, helping to improve sanitation for people without access to utilities – at present some 2.5 billion people around the world. — globalconstructionreview.com

For the first two weeks of the year, private cars with even-numbered license plates are allowed on the roads only on even-numbered dates, and those with odd-numbered plates on odd dates. The restrictions have noticeably reduced traffic in a city with 9 million cars, more than double that of a decade ago.

In 2014, the World Health Organization found New Delhi’s air to be the dirtiest of 1,600 cities it studied. Scientists blame the high levels of pollutants [...] for thousands of deaths a year. — latimes.com

Cities around the world have only one generation to meet the twin challenges of climate change and a rapidly growing urban population, the head of a global engineering firm has warned.

Gregory Hodkinson, chairman of the Arup group, said that with more than half the world’s population already living in cities, and the proportion set to rise to 70% by 2050, city leaders need to take urgent action. — The Guardian