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The first place to check for used golf carts is at local dealerships. Guldahl beat Sam Snead by two strokes at Oakland Hills in 1937 to take his first U.S. If the plastic is sent to an industrial composting facility where it's continually subjected to heat and microbes, it can degrade in two to three months. That's the case with polyhydroxyalkanoate (PHA) polyesters, the two main members of which are polyhydroxybutrate (PHB) and polyhydroxyvalerate (PHV). In 2002, almost one in every five fitness club members was over 55. Today parks, libraries, community colleges, senior centers and national organizations are offering more programs for active retirees than ever before. You will be given exclusive editing privileges and will be given a members only area for your league. Will the Saudis and Donald Trump Save golf ball logo-or Wreck It? Will bring consistency to your game with 40 plus uses to make you a better golfer. Are plastic alternatives better for the environment?

But since aromatic polyesters are completely resistant to microbial breakdown, a lot of time and effort is being pumped into finding viable alternatives in aliphatic polyesters. Overall, they aren't as versatile as aromatic polyesters such as polyethylene terephthalate (PET), which is commonly used to make water bottles. The next three entries on this list are all biodegradable plastics called aliphatic polyesters. Freezing sodium montmorillonite into a spongelike material called an aerogel, they infused the porous network of clay with casein plastic. Manufacturers mix lignin, a byproduct of paper mills, with water, and then expose the mixture to serious heat and pressure to create a moldable composite material that's strong and nontoxic. This particular biopolymer comes from pulp-based lignin, a renewable resource. Bamboo is a natural and renewable material that comes with anti-fungal and anti-bacterial properties. The winemaking industry produces a lot of grape waste - basically, the solid material that's left behind after grapes are pressed to extract the juice that's fermented into wine. But an Italian company, Vegea, is using the grape waste to make a synthetic leather that could replace vinyl imitation leather, and also into fabric for clothing. Take polycaprolactone (PCL), a synthetic aliphatic polyester that isn't made from renewable resources but does completely degrade after six weeks of composting.

However, blending PCL with cornstarch reduces cost. Rates vary based on the sport, length of season and location, but are generally nominal and usually cost somewhere around $100 or less. Because overhead irrigation systems need a plentiful supply of water at a relatively high pressure, they vary greatly in complexity and cost depending on the acreage you're covering. High school can be hard in many ways, from worrying about grades to finding out what you're good at. So get out there and start swinging. There are many environmentally friendly alternatives such as stainless steel, glass, bamboo, natural fiber cloth and ceramics, depending on what you're trying to replace the plastic item with. So, while there is no silver bullet for making plastics greener, a combination of revitalizing old ideas and revolutionizing plastic technology is a step in the right direction. While they're still less flexible than petroleum-based plastics, you'll find them in packaging, plastic films and injection-molded bottles. But unlike conventional petroleum-based plastics, PLA has some big advantages.

Department of Energy's National Renewable Energy Laboratory, had developed a promising process for improve the conversion of lignin into a substitute material for plastics, as well as nylon. The modern milk-based plastic doesn't crack as easily, thanks to that silicate skeleton, and they even made the stuff less toxic by substituting glyceraldehyde for formaldehyde during the process. Part of the modern experience for more than a century, the automobile is just a part of life that many of us take for granted. While it's necessary to have at least a passing knowledge about how a machine works to use it properly, knowing some of the history - and humanity - behind your automobile can lead to a more rewarding experience. While not strictly biodegradable ('bioerodable' is more like it), PDC-containing polymers are more environmentally friendly than their purer polymer cousins, which sit in landfills for hundreds of years. And like the young Nicklaus, Woods hit the ball so much farther than other pros that he seemed to be playing a different game. But although it's ideal for jewelry that even Queen Mary admired, casein-based plastic is too brittle for much more than adornment.