海角大神

Parked a few feet from the iconic pagoda at Indianapolis Motor Speedway is a reimagined E-Z-Go golf cart that鈥檚 essentially filled with garbage. Plastic bottles tossed into recycling bins months ago are now neatly stacked in rows 鈥� and they鈥檙e for sale.

Going fast, too.

The electric cart houses hundreds of Indy 500 T-shirts made from waste. The clothes are as soft as anything on the shelves in the regular merchandise stores and cost roughly the same. And it鈥檚 no coincidence they鈥檙e getting prime retail space, essentially located at the front door to the famed racetrack.

They鈥檙e the centerpiece of IndyCar鈥檚 latest push to go green, dubbed 鈥淭he Penske Initiative.鈥� The series is taking more and more steps 鈥� some bigger than others 鈥� toward holding carbon-neutral races by 2050. No, really.

What may have been considered a laughable endeavor just a few years ago now seems like a reasonable goal despite IndyCar鈥檚 truckloads of fuel and tires, as well as countless pollutants like emissions, chemicals, and petroleum products. And that doesn鈥檛 include the waste that will come with hosting nearly 300,000 fans for the 106th running of the Indy 500 on Sunday.

鈥淚t鈥檚 baby steps,鈥� longtime IMS President Doug Boles said. 鈥淚t鈥檚 like hundredths of a second for the cars. It doesn鈥檛 seem like much, but when you add up four or five changes, then all of sudden you鈥檝e got a tenth of a second. That鈥檚 where we are. It鈥檚 lots of little things that at the end of the day hopefully make a big impact.鈥�

That includes putting the traditional balloon release on pause because of environmental and wildlife impact concerns.

Here鈥檚 a look at some of the more notable ventures Penske Entertainment has undertaken to help combat global warming and do its part to wave the green flag on sustainability:

Renewable fuel

IndyCar will become the first North American racing series to use 100% renewable fuel in its race cars.

Shell, the longtime fuel sponsor for the open-wheel series, announced plans Friday to switch to a low-carbon fuel beginning in 2023. The new fuel will be a blend of second-generation ethanol derived from sugarcane waste and other biofuel, and it will create a fuel that is 100% composed of feedstocks categorized as renewable under the applicable regulatory frameworks. The oil giant says the fuel will decrease greenhouse gas emissions by 60% compared with fossil-based gasoline.

鈥淵ou鈥檝e got to be part of the solutions, and the way there is through these really potent partners who bring technology,鈥� said Penske Entertainment President and CEO Mark Miles. 鈥淐arbon reductions come from great technology and innovators. We have both.鈥�

Renewable tires

Firestone has been working on a renewable tire since 2012 and is nearing the finish line to getting it on track.

The tire manufacturer created a research center in Mesa, Arizona, a decade ago and hired hundreds of biologists, chemists, and botanists to help develop the guayule shrub. The guayule produces natural rubber and appears to be the future of racing tires.

Roughly 90% of the world鈥檚 rubber comes from Hevea brasiliensis in Southeast Asia. Harvesting those trees and getting the rubber back to North America is expensive and creates a heavy carbon footprint. It鈥檚 also subject to geopolitical instability.

The guayule is a cheaper, more sustainable alternative that renews itself in about three years and needs about 50% less water than other crops.

Guayule tires, distinguished by green-painted sidewalls, made their IndyCar debut during the Pit Stop Challenge on Friday. They will get a more significant test at the Music City Grand Prix in Nashville, Tennessee, in August, when IndyCar will use tires made partially of guayule rubber.

鈥淵ou don鈥檛 want to go straight to the Indianapolis 500,鈥� said Cara Krstolic, director of race tire engineering for Bridgestone Americas Motorsports. 鈥淵ou want to get there in stages. One of the fun things about racing is every once in a while you get to showcase something that ends up in the car you and I will drive.鈥�

Electric trucks听

Penske Truck Leasing used two fully electric tractor-trailers to haul all the race tires used in May from Firestone鈥檚 distribution center. IndyCar installed a high-speed charging station at IMS that can get a truck close to fully charged in about three hours. The trucks made six trips to relocate 12 trailers filled with tires.

The expansion of electric tractor-trailers and the installation of more charging stations could be the next carbon-saving steps for a series that crosses the country regularly.

Composting and donating

IMS installed a pilot program in May for collecting food waste and sending it to an off-site composting facility. Prepped and unused food, which in previous years would have gone in trash bins, is now being stored in a refrigerated trailer to be taken daily to food banks.

Mobile merchandise

The electric golf cart filled with clothes made from recycling has gotten the most attention at Indy this week. The cart has remained in one spot for the last two weeks, but officials plan to make it a rolling marketplace going forward. It has a 50-mile range and comes equipped with an electric generator than runs LED lights and a point-of-sale device.

Each shirt is made partially from 6陆 plastic bottles and uses water-based inks. There are five designs ranging in price between $32 and $35.

鈥淲hen people get up there and feel the shirt, they can鈥檛 believe this is made out of plastic bottles,鈥� said Raeann Suggs, senior buyer of merchandise for IMS and IndyCar. 鈥淚 would have been like, 鈥業鈥檓 not buying a shirt made out of plastic bottles. That鈥檚 going to be garbage!鈥� But it literally is garbage that feels amazing.鈥�

This story was reported by The Associated Press