Energy Exchange

Long considered a “clean” energy source, hydropower can actually be bad for climate

By Ilissa Ocko / Published: November 15, 2019

A new EDF study published this week in Environmental Science and Technology shows that hydropower — the leading renewable energy technology projected to grow rapidly — is not always as good for the climate as broadly assumed. Moreover, continuing to assume that it is could mean that projects meant to reduce greenhouse emissions will unintentionally increase them instead.

Motivated by pervasive misconceptions of the climate impacts of hydropower, we assessed the warming impacts over time of sustained greenhouse gas emissions estimated from nearly 1,500 existing hydropower plants around the globe. We also looked at the implications of future hydropower development.

Posted in Methane / Tagged Water | Comments are closed

How companies are using electric trucks to reduce air pollution and save money

By Lauren Navarro / Published: November 15, 2019

Earlier this year, Amazon announced it would purchase 100,000 electric trucks like this one as part of its efforts to reduce the company’s carbon footprint.

What do Amazon, Goodwill and PepsiCo have in common? They’re all investing in heavy-duty electric trucks. It’s a move that’s making great strides to reduce air pollution and save money.

Fortunately for these companies, making the switch to electric fleets is about to get a whole lot easier. The California Air Resources Board has just proposed a new standard that will require heavy-duty automotive manufacturers to produce more electric, zero-emission vehicles. Beginning in 2024, there could be thousands more new electric fleet vehicles on the market in California.

Posted in Air Quality, California, Electric Vehicles / Comments are closed

California fires, electricity outages need not be “the new normal”

By Michael Colvin / Published: November 14, 2019

A dire, almost defeatist thread has been running through social media and other commentary around the California wildfires and the widespread, preemptive electricity outages across the state. The sense of urgency about catastrophic side effects of climate change is right on. And it is true that fixing our electric grid will be a long and mighty task.

But we do not —and should not — have to accept this as “the new normal.”

Posted in Air Quality, California, Grid Modernization, Natural Gas / Comments are closed

Shining new light on the toxicity of chemicals in produced water

By Cloelle Danforth / Published: November 13, 2019

In the United States, onshore oil and gas extraction operations generate nearly a trillion gallons of produced water annually. It is the largest waste stream associated with upstream development of petroleum hydrocarbons.

As EDF has written in numerous posts, this wastewater from oil and gas wells can be complex and toxic. In addition to the chemicals companies use during drilling and extraction, it can contain a wide range of potentially harmful material that already existed in the ground, and can be many times saltier than seawater. There’s a lot of it, too. Some wells produce up to 10 times as much wastewater as they do oil.

Posted in Uncategorized / Tagged produced water | Authors: cdanforth / Comments are closed

Pennsylvania has an opportunity to lead on methane as EPA falters

By Andrew Williams / Published: October 22, 2019

Last week, the Environmental Protection Agency held a public hearing on its proposal to gut key regulations that reduce climate-damaging methane emissions, and protect communities from pollution from oil and gas development. Methane, an extremely potent greenhouse gas responsible for 25% of current global warming, is also the main component of natural gas, which is an important energy resource in Pennsylvania.

Pennsylvania is the second-largest natural gas producing state in the U.S. and should act now to ensure its residents do not lose key protections put in jeopardy by the federal government. Gov. Wolf recently committed to join the ranks of states working to limit carbon pollution. By joining the many other oil and gas producing states across the country stepping up to cut methane pollution from existing oil and gas infrastructure, Pennsylvania has a chance to lead by quickly advancing their current rule proposal.

Posted in Methane, Methane regulatons, Natural Gas / Tagged Pennsylvania | Comments are closed

Permian methane measurements will aid New Mexico regulators

By Jon Goldstein / Published: October 16, 2019

The Permian Basin has grown to become the most productive oil field in the country and one of the largest in the world, but too little is known about what this drilling boom means for methane waste and pollution. A new science effort led by Environmental Defense Fund with researchers from Penn State, the University of Wyoming and Scientific Aviation will help fill this knowledge gap and better inform state regulators in New Mexico who are moving forward on state methane rules.

This first-of-its-kind study will combine three different types of data collection, utilizing methane measurements from airplanes, a network of towers, and vehicles that take measurements downwind from well sites. All data collected will be shared publically to better inform local communities in southeast New Mexico and West Texas, as well as state regulators and the producers themselves, about the scope and scale of the methane problem in the Permian.

Posted in Methane, Methane regulatons / Tagged New Mexico | Comments are closed