If you see the Rolling Stones in concert this summer and go get a drink, there may be no single-use plastic cup for you. The band and its promoter are working with Michael Martin - he's produced a bunch of big Earth Day concerts. The Stones approached Martin and asked for help in eliminating plastic waste. He came up with a simple solution.

"When you come up to get your first drink, you put down a $3 deposit, you get a really high-quality Rolling Stones-branded cup," says Martin. "You use it throughout the night, and at the end of the event you can turn your cup in and get your $3 back or you can keep your cup."

If you return the heavier plastic cup at the end of the show, it gets washed and used again. Or recycled. At some concert venues, there will still be disposable cups available as well. Martin, whose new company is called r. Cup, has been working with other artists, including U2, Bon Jovi, and Radiohead. "The live-event industry goes through more than 4 billion single-use cups a year. At a typical stadium event, you could see 100,000 or 200,000 cups thrown out," says Martin.

But this idea - returning and reusing a cup - this isn't exactly rocket science. So, why is this just being tried now?

"That's a really good question," says Martin. "In America, we're a throwaway society, and what's happening is that people are now seeing the consequences of that. And so, we're hoping we'll be able to wake people up and rearrange things."

Throwaway cups do serve a few purposes: They're cheap and easy, and it's a way for vendors to keep track of sales and make sure their employees aren't giving away free beer. Still, Martin says we can get past that. He'd like to introduce reusable cups at sporting events, zoos, universities, and festivals.

He's starting with rock concerts because artists have a pretty powerful platform. I mean, if Mick Jagger tells his fans to stop abusing the planet, who's going to say no to that?

There is nothing like a coast redwood. It is the planet’s tallest tree, soaring to heights of more than 320 feet into the sky. They have trunks that are more than 27 feet wide and can live for over 2,000 years. Some of the gentle giants living today were alive during the time of the Roman Empire.

Before the mid-19th century, coast redwoods spread throughout a range of some 2 million acres along the California coast. People had been peacefully co-existing with the forests forever. But with the gold rush came the logging (伐木作业); and today only 5 percent of the original old-growth coast redwood forest remains along a 450-mile strip of coast. And as the planet warms up, the specific conditions required by the redwoods change; their future doesn’t look so great. Animals can migrate north to escape the south’s warming temperatures; trees, not so much.

But with David Milarch on the case, maybe they can. In 1991, Milarch literally died from a life-threatening illness, before being revived and springing back to life. There’s nothing like a near-death experience to inspire a new course in life, as was the case with Milarch. His new quest? To harvest the genes of the coast redwoods and give them an assist in migration.

“I feel sorrow that 95 percent of them were killed and we didn’t even know what they do to strengthen our ability as human beings to live on this planet,” says Milarch. “We killed them. That’s the bad news. To put back every single tree that was cut down and killed. And I’m going to do it. ” By cloning and replanting them in places where they once thrived (繁荣) but were lost, he is not only increasing their numbers but planting them in locations where they have a better chance of longevity. And the result is two-fold: Save the trees and save the planet for humankind. Redwood trees are among the most effective carbon sequestration (碳封存) tools in the world.

The increasing environmental problems and need for eco-friendly products and services are creating a new job section of green-collar jobs. 【小题1】 It is expected that by 2025 about 25% of the jobs in developed countries will be of green-collar jobs. Doesn’t the data look promising for the future?

【小题2】 And jobs will pop up at every income level, from environmental manager to gardener. For example, many countries including the United States have understood that fossil fuels have negative effect on the environment which can later become a serious danger to mankind. 【小题3】 The increasing demand of newer resources has created the need for experts and researchers who can find better ways to deal with the ongoing needs. In addition, in order to meet the increasing demand of environment-friendly equipment, both green product designer and trained workers are needed. Management of environmental organizations also demands a large number of environmental managers.

【小题4】 Internet is undoubtedly the best way to find information on almost any matter. Nowadays, different kinds of jobs are being posted online. Search through a couple of job websites to look for a bright future in energy conversion and recycling of waste management. Check regularly and find the right work for yourself.   【小题5】