Even Smart People Are Still Arguing About Fossil-Free Electricity

Even Smart People Are Still Arguing About Fossil-Free Electricityby 3p Contributor on Friday, Jul 21st, 2017 CLIMATE & ENVIRONMENTSHAREClick to share on Twitter (Opens in new window)25Click to share on Facebook (Opens in new window)2556Click to share on LinkedIn (Opens in new window)56Click to share on Google+ (Opens in new window)Click to email this to a friend (Opens in new window)Click to print (Opens in new window)U.S. cities like Chicago have pledged to continue working toward the Paris Agreement on Climate Change. By Felix Kramer and Rosana FrancescatoAt a pivotal moment for climate strategies, scientists and business leaders have started a public debate about how fast and how fully we can leave oil, coal, and gas behind. More people now recognize climate change as the pre-eminent issue of our time, a core focus of resistance, and a source of massive economic opportunities.Imagine looking back and saying, “The Anthropocene Epoch started dangerously, as human activity threatened our future. But that sparked an unprecedented transition that protected our air and water. Every country pulled together to ensure a livable world. Our confidence, ingenuity, and resolve made it humanity’s greatest triumph.”After the U.S. government walked away from its international climate commitments, other key players including companies, cities, and states – where much of the action was already taking place – upped the ante. Policies, legislation, and entrepreneurship increasingly reflect this urgency. Globally, cities and companies are setting timetables to get off fossil fuels. Some are already there! Roadmaps created by Stanford engineer/atmospheric scientist Mark Z. Jacobson and the Solutions Project he co-founded helped make “100 percent renewables by 2050” a meme.But some have privately questioned the goal’s assumptions, research, and feasibility. Now 21 prominent climate scientists have issued a comprehensive public critique in the same Proceedings of the National Academy of Sciences where Jacobson published in 2015. Jacobson’s team gave broad and line-by-line responses, to which the critics responded.This debate highlights the views of experts who support renewables, but believe the electric grid needs a “many of the above” portfolio. To keep the lights on, they say we may long need 20 percent low- or zero-carbon non-renewable baseload capacity. They favor keeping open most atomic plants. They support efforts to develop affordable next-generation nuclear, CCS (carbon capture & sequestration), hot fusion, and LENR (low energy nuclear reactions). They hope these can be deployed at scale in time to make a difference.

Courtesy: By Felix Kramer and Rosana Francescato

Source: Even Smart People Are Still Arguing About Fossil-Free Electricity

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A Floating Food Forest In New York City | Modern Cities

New York’s ‘barge-to-table’ floating farm gives city residents without access to farmland the opportunity to pick their own food. As a successful demonstration at Brooklyn Bridge Park comes to end later this week, Mary Mattingly has shed light on an obscure New York City law that prohibits the growing of food on public land, and demonstrated that edible perennial landscapes can help solve food insecurity problems in even the harshest of urban settings.Swale is a public floating food forest built atop a 5,000 square foot barge, currently docked at Brooklyn Bridge Park’s Pier 6. Founded in 2016 by artist Mary Mattingly, Swale allows visitors to harvest herbs, fruits and vegetables for free. The project began as an idea to advocate for food to be grown on some of the 30,000 acres of public land in New York City. Although NYC boasts over 100 acres of community garden space, the City has more than 30,000 acres of park space. Picking one’s own food is illegal on New York City public land, so Mattingly banded together a team of stakeholders to construct a dense garden of edible plants atop a barge- which is technically legal due to a loophole created by waterway common law.

Source: A Floating Food Forest In New York City | Modern Cities

The Swedish-Inspired Way American Cities Are Trying to End Pedestrian Deaths

Shirley Gonzales made no secret of her views on transportation when she ran for the San Antonio City Council in 2013. She laid them out in her answer to a questionnaire: “pedestrians first, followed by cycling, public transportation and private automobiles, in that order.” Gonzales promoted this agenda even though she was running in a city where fewer than 2 percent of commuters walk to work.A few months later, after she’d won the election, the tales of some of her constituents drove the issue home. Most prominent was the story of Sharon Ledesma, a 28-year-old single mother who was crossing a four-lane street one night when a car switched lanes and veered toward her and her two children. Ledesma managed to push the children out of the way. Dominic, who was 11 at the time, and Mallory, who was 8, survived but had serious injuries. Both had broken bones and were on crutches for weeks. Ledesma, however, did not make it. She was declared brain dead at the hospital. The next day, after her kids had a chance to say goodbye, her family took her off life support.Gonzales began to hear from other San Antonio families. The city had one of the highest pedestrian death rates in the country. In fact, 373 pedestrians had died in the metropolitan area over the previous decade. And Gonzales’ own district, largely poor and Hispanic, had some of the most dangerous streets, especially Culebra Road, the arterial where Ledesma died. That four-lane road shares many of the characteristics of other deadly stretches for pedestrians: Cars traveling near the speed limit of 40 mph pass between modest homes and retail outlets, while pedestrians walk along sidewalks separated from the traffic by only a low curb for as much as half a mile between crosswalks.

Source: The Swedish-Inspired Way American Cities Are Trying to End Pedestrian Deaths

San Francisco Abandons a Raised Bike Lane – CityLab

In the battle of cars versus raised bike lanes, the cars just won a small battle in San Francisco.The city had planned on installing a two-inch raised, mountable lane on a section of Polk Street, where, on average, cars hit one cyclist and one pedestrian every month. But now it’s scrapped that plan in favor of a more traditional lane, which will be protected with soft-hit posts.The switch comes after San Francisco evaluated its first, experimental raised lane on downtown’s Market Street. The lane proved challenging to some cyclists since it debuted in late 2015; at least two collisions occurred (one resulting in a “major injury”) when people tried to roll up onto the path. But the main issue was the raised lane just wasn’t keeping cars away, as evident in angry social-media posts about police cars and a delivery truck blocking cyclists’ right of way.The San Francisco Municipal Transportation Agency says it believes lanes in these kinds of heavily commercialized corridors should be protected with a line of parked cars (something Oakland recently did, with varying success). But since that’s not possible on Polk, it will have plastic barriers sticking up from a buffer zone, as depicted on the right:

Source: San Francisco Abandons a Raised Bike Lane – CityLab

From Worst to First: Can Hawaii Eliminate Fossil Fuels?

Ask Americans which state is the greenest, most unspoiled, most eco-conscious place in the country, and a lot of people would probably say Hawaii. So it may come as a surprise to learn that Hawaii is actually the most oil-dependent state in the nation. Because it’s unreachable by trains or pipelines, the state spends $5 billion a year importing oil. As recently as 2003, more than 90 percent of their electricity came from foreign oil. That’s not just bad for the environment; it’s bad for consumers: Hawaii residents pay the highest electricity rates in the nation.That could all soon be changing, however. Thanks to sweeping legislation adopted last year, Hawaii has set a goal to become the first state in the country to generate 100 percent of its electricity from renewable energy resources. If it’s successful — the 100 percent goal has a deadline of 2045 — Hawaii would move from worst to first on clean energy. To call the plan ambitious would be an understatement. Getting to a completely renewable portfolio requires not only new investments and new technologies, but also a complete overhaul of the energy industry in the state. But the truth is that Hawaii has already made notable strides in reducing its dependence on fossil fuels. Thanks to a committed effort over the past 15 years, the state has decreased its dependence on oil by about 20 percentage points from that 2003 high.

Source: From Worst to First: Can Hawaii Eliminate Fossil Fuels?