Parking lots dominate the landscapes in many cities, but state lawmakers across the country are looking to reduce the number of unused parking spaces. More than a dozen states that considered ending or reducing parking mandates in 2023 legislative sessions, following Oregon's lead. Nearly every city in the U.S. requires a certain number of parking spaces be built for each new business and housing complex.

Michael Andersen, a senior researcher with Sightline Institute, a Northwest think tank focused on sustainability, said policymakers are reconsidering past efforts to overbuild parking lots.

"People are saying, 'Wait a minute, wait a minute, there are a bunch of unintended consequences here," he explained. "There are a bunch of longer-term side effects of building our cities with these expanses of parking lots everywhere. Let's let cities evolve as they will.'"

Andersen added creating too many lots has environmental, social and economic costs. The boom in legislation, from Vermont to Oklahoma, addressing this issue comes after Oregon approved a law last year reducing parking mandates. In the state's eight largest metro areas, mandates are eliminated completely in certain situations, such as within a half-mile of frequent public transit.

Andersen said this issue is an extension of the larger housing affordability problem gripping cities both big and small and added the upsurge in telecommuting that accompanied the pandemic prompted a large migration of people from big to small.

"These housing shortages have rapidly become more bipartisan because they're manifesting in new areas, and I think people are just looking for ways to cut the cost of housing," he said.

California also eliminated or reduced parking mandates last year.

It is National Drive Electric Week and the Arizona Public Interest Research Group Education Fund wants to raise awareness about the benefits electric vehicles can offer.

Diane Brown, executive director of the group, said Arizona has experienced an uptick in EV sales over the last several years. As of September of this year, there are now close to 90,000 EVs registered in Arizona, according to the U-S Department of Energy.

Brown added Arizonans are taking advantage of available tax credits and incentives from government and utilities to make the switch and help improve air quality, thereby protecting public health but also saving them money.

"Arizona can continue to bolster policies that help make the opportunities for drivers to shift gears from gas-fueled built vehicles to driving electric," Brown urged.

Brown acknowledged Arizonans may be apprehensive about an EV. She added some of the biggest worries are driving range and charging infrastructure. To those on the fence, she said car manufacturers continue to improve range and the state is set to receive millions in federal dollars to improve charging infrastructure along interstate highways.

To learn more about tax credits and incentives, Brown encouraged people to visit savingenergytips.org.

Brown added Arizona's clean energy economy, which includes the EV sector, is rapidly expanding. Thousands of jobs are making their way to Arizona thanks to federal legislation, such as the Inflation Reduction Act and the Bipartisan Infrastructure Law. Brown emphasized everyone across Arizona wins.

"Municipalities, school districts and businesses are reaping financial benefits from transitioning their fleets to electric," Brown added.

Arizona is among the top 10 states with the most EV registrations.

This week, federal officials announced a new round of funding for passenger rail projects. It is part of a larger push to expand and restore service, including an old Amtrak route which once made stops in North Dakota.

The $1 billion in total grants is part of a larger rail funding pool under the Bipartisan Infrastructure Law. The Big Sky Passenger Rail Authority is helping restore a former route connecting Chicago to the Pacific Northwest, which ran until the late 1970s. The reinstated line would bring back service along the route to cities such as Bismarck.

Dave Strohmaier, chairman of the authority, said they were awarded seed money last year and remain hopeful about what lies ahead.

"The addition, the restoration of this passenger rail service would make a big difference to the economies, to the opportunities for transportation options for small and large communities along this route," Strohmaier contended.

There's an Amtrak route still operating across northern North Dakota, but Strohmaier said bringing back stops to the southern half helps communities with tourism, while getting rural residents to medical appointments in larger cities. He noted a small percentage of riders travel the entire multistate route.

The latest funding is for competitive grants. Regional leaders indicate they will bypass this round because it doesn't align with their effort. More funding will be needed once they move past the planning stage.

As for tourism, Strohmaier noted reinstating this service would also coincide with the planned opening of the Theodore Roosevelt Presidential Library in western North Dakota in the coming years. He described it as a match made in heaven.

"What a great way to travel -- in the same manner in which Theodore Roosevelt traveled many, many decades ago to the great state of North Dakota," Strohmaier stressed.

Project leaders added the new project would not disrupt North Dakota's current Amtrak route, the Empire Builder. Strohmaier said if all the stars align, the restored service could be up and running within the next decade. Potential complications include overcoming a shortage of manufactured train cars in the U.S.


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Nevada is home to North America's largest lithium deposit, a needed metal for electric vehicle battery manufacturing. And while some argue EVs are the way of the future, especially as communities in Nevada and around the world continue to battle climate change, others are more skeptical about how "green" EVs truly are.

Jarod Kelly, principal energy systems analyst at the Argonne National Laboratory, a science and engineering research center, has been looking into exactly that. Put simply, he said research shows EVs are better for the environment than their gas-powered counterparts.

"We see electric vehicles outperform internal combustion engine vehicles, assuming that vehicle is basically the same as the other one. That is a pretty clear picture that the environmental community has seen from the research that we have conducted," Kelly said.

While the manufacturing process of an EV or hybrid battery does produce harmful greenhouse-gas emissions, they still account for less over the lifetime of an electrified car when compared with gas-powered ones. PNAS has created "emission calculators," which use Argonne data. Kelly explained the calculators simplify his organization's more complex model called GREET, which examines the effects of different transportation fuels and vehicle technologies on energy use and the environment.

If the adoption and implementation of more renewable energies become stronger in the coming years, meaning the electrical grid around the country becomes less dependent on fossil fuels, researchers such as Kelly suspect greenhouse gas emissions from electric vehicles would flatten out instead of continuing in an upward slope as current models show.

"We have to understand both how you make that vehicle, that is what we call the 'production burden,' and then also what goes into operating that vehicle, so driving it where you are trying to go, and we call that the 'fuel cycle.'" he continued.

While many drivers may be hesitant in switching to an EV due to the availability of charging infrastructure, Kelly said hybrids may be a good alternative. While the much smaller batteries in hybrids don't require such large carbon emissions to manufacture, the emissions savings over the long haul are still significantly less than an EV as they also use gas.

This story is based on original reporting by Peter Aldhous for the Proceedings of the National Academy of Sciences.