The solar power industry is about to get a big boost in San Francisco. On April 19, the city’s Board of Supervisors voted unanimously to become the first major US metropolitan area requiring that new buildings install solar photovoltaic (PV) panels on their roofs.
California already mandates that new buildings with 10 floors or less designate at least 15% of their rooftop area (pdf, p8) as being ready for solar panel installation. — Quartz

“A lot of people want to go back to something,” [said Ruth Gates]. “They think, If we just stop doing things, maybe the reef will come back to what it was. [...] Our project is acknowledging that a future is coming where nature is no longer fully natural.” [...]

The power of selective breeding is all around us. Dogs, cats, cows, chickens, pigs [...] But the super-coral project pushes into new territory. Already there’s a term for this sort of effort: assisted evolution. — the New Yorker

For four decades, the problem of how to create an economically viable business producing power from waves has fascinated a specialized group of engineers, many of whom are concentrated around the sea-beaten coast of Scotland. Inventors have created all sorts of strange and wonderful devices to coax energy out of the water; investors have poured millions of pounds into the effort. — Quartz

An influential group of scientists led by James Hansen, the former NASA scientist often credited with having drawn the first major attention to climate change in 1988 congressional testimony, has published a dire climate study that suggests the impact of global warming will be quicker and more catastrophic than generally envisioned. — the Washington Post

A handful of scientists and policy makers are...grappling with the long-term environmental effect of an economy that runs increasingly on gotta-have-it-now gratification [...]

The environmental cost can include the additional cardboard — 35.4 million tons of containerboard were produced in 2014 in the United States, with e-commerce companies among the fastest-growing users — and the emissions from increasingly personalized freight services. — NY Times

Nature is poised to reconquer Madrid. Faced with rising summer temperatures, Spain’s capital has announced plans, reported in today’s El Pais, to seam the city so thoroughly with new green patches that its face could be quite transformed.

City parks will be expanded and restored, and 22 new urban gardens created. Vacant public land will be freed up to create community gardens while the banks of the city’s scrappy Manzanares River will be thickly planted with trees... — City Lab

King tides—a type of perigean spring tide (there’s your science jargon)—occur when extra-high tides line up with some other meteorological anomalies. They’re not a huge deal: The water flowing over the seawall is part novelty, part nuisance. But these rare days hint at a new normal, when sea level rise will render current coastlines obsolete [...]

On January 21 and 22, the king tide will bring San Francisco’s shoreline about a foot higher than average high tide. — Wired

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

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

The last deep-pit coal mine in the U.K. plans to shut its doors here next week, heralding the end of a centuries-old industry that helped fuel the industrial revolution and build the British Empire.

The shutdown [...] represents a victory for advocates of reducing carbon emissions after world leaders gathered in Paris to discuss how to combat global warming, with coal in the cross hairs. It also reflects a glut of energy on world markets, from crude oil to natural gas and coal itself. — wsj.com