Oil refineries are increasingly being powered by petroleum-derived fuels, and they can’t recycle them all.

But they can get rid of those that are no longer being recycled.

That’s because refineries can’t safely handle a significant amount of oil-based products, such as asphalt, cement and glass, because they need the chemicals to be able to burn them.

That includes those that contain benzene, a known carcinogen.

So refineries that produce asphalt and cement will continue to use those products, despite the fact that the compounds are no more toxic than the alternatives.

Some refineries also can’t handle enough glass.

And some refineries have to get rid a large proportion of glass, which they are now recycling at a slower rate.

That makes sense.

Glass, as a durable and non-toxic material, is a better option than asphalt, a much more toxic material, according to the U.S. Environmental Protection Agency (EPA).

The problem, however, is that there are a lot of glass refineries around the country, and it’s just a question of how many they can safely handle.

The United States produces over 100 billion tons of glass each year, according the U, and the EPA estimates that there could be as many as 3,600 refineries in the country.

That’s more than all the refineries used by refineries worldwide.

The EPA estimates about 1,300 refineries could need to be shut down.

The agency also has proposed closing more than 400 refineries across the country to save money, though the number is likely to be higher.

In the end, the EPA would like to see refineries turn to recycled glass, including glass from glassblowers and glass products manufacturers like Johnson & Johnson.

But in order to get that, refineries would have to make significant investments in their infrastructure and in their technology, said Tom Kline, a spokesperson for the EPA.

If refineries stop producing glass, the process of removing the material from the refinery will likely be more labor-intensive, he said.

The glass industry is working on an initiative that would let refineries recycle glass without having to cut down on workers’ hours.

But there are many refineries and glass factories around the world that would be impacted, said John E. O’Brien, president of the American Glass Manufacturers Association, a trade group.

Refineries are also concerned that if they continue to produce the glass, they may eventually have to stop making glass products themselves, he added.

There is also a question about the extent to which the industry can survive if refineries close.

“There’s a risk that refineries will have to reduce their glass production because they don’t have enough glass in the tank to continue to make products,” Kline said.

That would mean fewer jobs for refineries, said Mark Phelan, a professor of materials science and engineering at the University of California, Berkeley.

There are many other concerns, too.

The U.N. has warned that the global oil and gas industry faces a crisis of overproduction and is running out of resources.

That means that there is a risk of the world not having enough oil or gas to produce as much as it wants.

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