Biodegradable Plastic, Bioplastic, Compostable Plastic - What?

!±8± Biodegradable Plastic, Bioplastic, Compostable Plastic - What?

A lot of terminology has been floating around these days- Biodegradable Plastic, Bioplastic, Compostable Plastic- what does it all mean?

Let's start with Compostable Plastic. This is a plastic that undergoes biological degradation when it is composting that yields carbon dioxide, water, and inorganic compounds that leaves no visual distinguishable or toxic residues. You may be familiar with ASTM D6400 which covers plastics and products made from plastics that are designed to be demposted in industrial and municipal aerobic composting facilities.

Bioplastics are plastics that are considered "environmentally friendly". They are made from natural materials such as corn starch. Since bioplastics are made from corn starch, some can break down in a few weeks. The cornstarch molecules absorb water and swell up thus causing them to break apart into small fragments that bacteria can more readily digest.

Biodegradable plastics (also called photodegrable, oxydegradable) are made from traditional petrochemicals which are engineered to break down much more quickly. Biodegradable plastic contain additives that cause them to decay more rapidly in the presence of light and oxygen. The down side is that biodegradable plastics don't always break down into harmless substances and can sometimes leave behind a toxic substance that can make them unsuitable for composting.

There are varying opinions as to whether these forms of plastic are actually good for the environment.

Since posting this blog, we received some great comments. One comment was:

You're right, a good deal of confusion exists with the terminology used in the bioplastics industry. For example, bioplastics are biopolymers, but biopolymers may not be bioplastics. Biodegradable, photodegradable and oxodegradable are very different types of products. Photo and Oxo products only break the plastic into smaller pieces leaving behind plastic fragments.

Biodegradable Plastic, Bioplastic, Compostable Plastic - What?

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simplehuman Step Trash Can, Rectangular, Fingerprint-Proof, 10 Gallons, Stainless Steel

!±8± simplehuman Step Trash Can, Rectangular, Fingerprint-Proof, 10 Gallons, Stainless Steel

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How to Adopt a Tiger

!±8± How to Adopt a Tiger

A family that adopts a tiger: this could be the premise of a new sitcom. However, this isn't necessarily what adopting a tiger is all about. When you adopt a tiger, you don't bring him into your home. Instead, you provide money to an organization which then makes sure the tiger is taken care of.

We often hear about how tigers are at the top of the food chain. They eat other animals, and no one messes with them. Despite this, tigers have become extremely endangered. This is mostly because humans have destroyed their habitats and hunted them for their beautiful fur coats. If we aren't careful, our children and grandchildren might never know what a tiger is except through pictures in books.

So what can you do to make sure that tigers continue to survive for years to come? One of the best things you can do is adopt a tiger.

One of the easiest ways to do this is through the zoo in your hometown. This is a particularly attractive option because then you have the ability to visit your tiger whenever you want. Many school teachers who are teaching their students about animals and the conservation of the planet will adopt a tiger on behalf of the entire class. This gives the class an interest in tigers which they might not have otherwise had. Especially if the tiger is a cub, they can watch and learn as the tiger grows. The best part about adopting a tiger through your zoo is that it is relatively inexpensive. Zoos are able to get lots of contributions from people like you, so you can usually donate as little or as much money as you'd like.

However, many people don't feel that adopting a tiger from the zoo makes much difference. After all, these animals aren't in any danger of extinction, and they have already been displaced from their natural habitat. They would rather see wild tigers protected from the zoos themselves. If this describes you, then you might consider adopting a wild tiger. The Tiger Foundation (tigers.ca) offers a one sponsor per tiger program. This foundation protects tigers that are still in the wild. Under this program, you will feel good knowing you are making a real difference in a tiger's life. The downside is that it costs ,000 per year. You can also adopt an entire family of tigers for ,000 per year.

How to Adopt a Tiger

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