call to action

New report calls for Houston-area health care providers to take action amid climate change

What can hospital systems do to combat climate change? A lot, according to a new report from the Center for Houston's Future. Photo via TMC.org

A new report underscores an “urgent need” for health care systems in the Houston area to combat climate change and avoid an environmental “code blue.”

“By adopting collaborative strategies and leveraging technological innovations, health care providers can play a pivotal role in safeguarding the health of Houston’s residents against the backdrop of an evolving climate landscape,” says the report, published by the Center for Houston’s Future.

Among the report’s recommendations are:

  • Advocate for policies that promote decarbonization.
  • Create eco-friendly spaces at hospitals and in low-income communities, among other places.
  • Recruit “champions” among health leaders and physicians to help battle climate change.
  • Establish academic programs to educate health care professionals and students about climate health and decarbonization.
  • Bolster research surrounding climate change.
  • Benchmark, track, and publish statistics about greenhouse gas emissions “to foster accountability and reduce environmental impacts of the health care sector.” The report notes that the U.S. health care sector emits 8.5 percent of the country’s greenhouse gases.

“By embracing collaborative strategies, acting with urgency and implementing sustainable practices, our region’s health care providers can play a pivotal role in creating a healthier, more resilient Houston,” says Brett Perlman, outgoing president and CEO of the Center for Houston’s Future. “If we work together, given all the collective wisdom, resources and innovation concentrated in our medical community, we can tackle the challenges that are confronting us.”

The report highlights the threat of climate-driven disasters in the Houston area, such as extreme heat, floods, and hurricanes. These events are likely to aggravate health issues like heatstroke, respiratory illnesses, cardiovascular diseases, and insect-borne diseases, says the report.

St. Luke’s Health, a nonprofit health care system with 16 hospitals in the Houston area and East Texas, provided funding for the report.

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A View From HETI

A team at the University of Houston is changing the game for sodium-ion batteries. Photo via Getty Images

A research lab at the University of Houston has developed a new type of material for sodium-ion batteries that could make them more efficient and boost their energy performance.

Led by Pieremanuele Canepa, Robert Welch assistant professor of electrical and computer engineering at UH, the Canepa Research Laboratory is working on a new material called sodium vanadium phosphate, which improves sodium-ion battery performance by increasing the energy density. Energy density is the amount of energy stored per kilogram, and the new material can do so by more than 15 percent. With a higher energy density of 458 watt-hours per kilogram — compared to the 396 watt-hours per kilogram in older sodium-ion batteries — this material brings sodium technology closer to competing with lithium-ion batteries, according to the researchers.

The Canepa Lab used theoretical expertise and computational methods to discover new materials and molecules to help advance clean energy technologies. The team at UH worked with the research groups headed by French researchers Christian Masquelier and Laurence Croguennec from the Laboratoire de Reáctivité et de Chimie des Solides, which is a CNRS laboratory part of the Université de Picardie Jules Verne, in Amiens France, and the Institut de Chimie de la Matière Condensée de Bordeaux, Université de Bordeaux, Bordeaux, France for the experimental work on the project.

The researchers then created a battery prototype using the new materia sodium vanadium phosphate, which demonstrated energy storage improvements. The material is part of a group called “Na superionic conductors” or NaSICONs, which is made to let sodium ions move in and out of the battery during charging and discharging.

“The continuous voltage change is a key feature,” Canepa says in a news release. “It means the battery can perform more efficiently without compromising the electrode stability. That’s a game-changer for sodium-ion technology.”

The synthesis method used to create sodium vanadium phosphate may be applied to other materials with similar chemistries, which could create new opportunities for advanced energy storage. A paper of this work was published in the journal Nature Materials.

"Our goal is to find clean, sustainable solutions for energy storage," Canepa adds. "This material shows that sodium-ion batteries can meet the high-energy demands of modern technology while being cost-effective and environmentally friendly."

Pieremanuele Canepa, Robert Welch assistant professor of electrical and computer engineering at UH, is leading a research project that can change the effectiveness of sodium-ion batteries. Photo courtesy of UH

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