There Are 68.4 Million Better Places for Solar Panels Than Mr. Trump's Wall
By John Rogers
President Trump on Tuesday suggested putting solar panels on his infamous border wall to help pay for it (since Mexico certainly won't). While there are more things wrong with that proposal than I can cover in this space, it's great to see that President Trump has finally figured out solar panels are cost-effective energy investments, paying for themselves even if you ignore the many environmental benefits. But here are more than 68.4 million better places for President Trump to invest in solar to pay dividends for the American people.
Solar on the roof
The U.S. National Renewable Energy Laboratory (NREL) last year published a fine study of the potential of America's rooftops to host solar. The researchers analyzed how much solar photovoltaic (PV) capacity we could get overhead, from existing buildings (considering roof orientation, tilt and shading), and calculated what it would add up to.
One conclusion of that analysis was that "83 percent of small buildings have a suitable PV installation location," and that more than a quarter of the total roof area of those buildings could work. NREL is careful to say that that's the technical potential, not necessarily what would make sense in other regards. But if we take that 83 percent, and consider the number of stand-alone, single-family houses, you end up with 68,380,764 million (give or take a few million) places to put solar.
As it happens, a lot of those sunny rooftops are near our beautiful southern border: In most Texas zip codes, for example, more than 90 percent of the small buildings might work for solar.
Source: Gagnon et al. 2016
From a technical potential point of view, residential rooftops across the country could meet a big chunk of household electricity needs in a lot of states: More than 90 percent in a dozen states, and at least 70 percent in 27 states.
Source: Gagnon et al. 2016
Solar on more roofs
But wait, there's still more: Note that NREL's "small buildings" doesn't just mean detached single-family homes. If we add in duplexes and small apartment buildings, that would mean millions more rooftops for solarizing.
And then there's plenty of roof space beyond small buildings: commercial, industrial and institutional roofs. NREL found that "more than 99 percent of large and medium buildings" have some place that would work for solar ("at least one qualifying roof plane"). And the total rooftop area that would work is much higher than for small buildings (very few trees shading the middle of a big-box store roof…). Their calculations suggest potential on around half of the total roof area of medium buildings, and two-thirds of large ones.
If you take the rooftop potential across the various size buildings (which, unlike walls in the middle of deserts, are already connected to the electricity grid), and compare it even to the total electricity needs in each state, you find that it really adds up (particularly in states and cities that are serious about energy efficiency).
Source: Gagnon et al. 2016
Solar on the ground
Plus, roofs are definitely not the only place suitable for solar. The latest solar stats show that the progress of large-scale solar, done by utilities and others, has been even more impressive than residential and commercial ("non-residential").
Source: GTM-SEIA Solar Market Insight, 2016 Year in Review
And large, ground-mounted solar arrays don't just make sense in fields, farmlands and deserts. Old landfills or "brownfields"—lands that have been degraded by past industrial activity—can be a great fit for new solar capacity. (The same could be true for solar at old power plant sites, where the plants have shut down but the infrastructure and grid connection are still there.)
Larger arrays can also be the foundation of community solar systems, a way of making solar work for people who can't or don't want to do it on the roof.
Solar in reality
So enough of the frivolous flights of folly in trying to use solar's overwhelming popularity to make a wildly unpopular project slightly less unpopular. A border wall might need solar, but solar certainly doesn't need a border wall.
Solar is real, and it makes sense. And we already have plenty of places to put it, if President Trump would just put his office and budget to good use for moving American energy forward.
John Rogers is a senior energy analyst with expertise in renewable energy and energy efficiency technologies and policies at the Union of Concerned Scientists.
Santa Barbara Becomes First California City to Pass Resolution Against Offshore Oil and Gas Drilling
The Santa Barbara City Council approved a resolution Tuesday opposing new drilling off the California coast and fracking in existing offshore oil and gas wells. The resolution is the first in a new statewide campaign to rally local governments against proposals to expand offshore fossil fuel extraction in federal waters.
The vote—which makes Santa Barbara the first California city to oppose both fracking and new offshore drilling—follows President Trump's April 28 executive order urging federal agencies to expand oil and gas leasing in federal waters. The order could expose the Pacific Ocean to new oil leasing for the first time in more than 30 years.
Starting Wednesday, the vast majority of Americans can learn about every potentially harmful chemical in their drinking water and what scientists say are the safe levels of those contaminants. The Environmental Working Group's (EWG) new national Tap Water Database is the most complete source available on the quality of U.S. drinking water, aggregating and analyzing data from almost 50,000 public water systems in all 50 states and the District of Columbia.
The organization has earned a reputation for ambitious data-mining research projects that shake up policy debates and consumer markets. EWG's online Farm Subsidy Database, listing millions of subsidy recipients, and its Skin Deep guide to more than 70,000 personal care products, draw tens of millions of visitors every year.
By Stacy Malkan
Ever since they classified the world's most widely used herbicide as "probably carcinogenic to humans," a team of international scientists at the World Health Organization's (WHO) cancer research group have been under withering attack by the agrichemical industry and its surrogates.
In a front-page series, The Monsanto Papers, the French newspaper Le Monde described the attacks as "the pesticide giant's war on science," and reported, "to save glyphosate, the firm [Monsanto] undertook to harm the United Nations agency against cancer by all means."
The lengthy report from the Energy and Policy Institute uses reams of archival documents to demonstrate that utility industry representatives knew as far back as 1968 that burning fossil fuels could trigger "catastrophic effects" on the climate.
By Sharon Kelly
The Pennsylvania's Environmental Hearing Board ordered Sunoco Pipeline LP Tuesday to temporarily halt some types of work on a $2.5 billion pipeline project designed to carry 275,000 barrels a day of butane, propane and other liquid fossil fuels from Ohio and West Virginia, across Pennsylvania, to the Atlantic coast.
On July 19, three environmental groups presented Judge Bernard Labuskes, Jr. with documentation showing that the project had caused dozens of drilling fluid spills and other accidents between April and mid-June.
By Andy Rowell
The UK has followed France in banning the sale of new petrol and diesel cars by 2040, as part of its plan to tackle chronic air pollution in cities. The government has been coming under intense pressure to act, with an estimated 40,000 people dying prematurely a year from air pollution.
By Colleen Curry
People traveling across America today can, if they're lucky, pitch a tent in the same exact spot that early American explorers and map-makers Lewis and Clark did, amid the jagged rocks and sweeping plains of the Upper Missouri River Breaks in central Montana.
Brent Rose, a journalist and filmmaker who has been traveling around the U.S. in a van for two years, was one of the lucky ones.
Kyara, a killer whale born at SeaWorld San Antonio just three months ago, died Monday at the park, as reported in this video from Newsy. Kyara is the last orca to be born in captivity under the SeaWorld breeding program, which shut down in 2016.
In a statement, SeaWorld said the cause of death was "likely pneumonia" and that "Kyara had faced some very serious and progressive health issues over the last week."