Global warming refers to an increase in the average temperature of the Earth as a result of the greenhouse effect, in which gases in the upper atmosphere trap solar radiation close to the planet's surface instead of allowing it to dissipate into space. Both natural and human-made conditions can contribute to global warming, but human beings can do several things to reduce the effects.
We can help protect our natural resources and reduce the amount of waste produced by following three Rs: Reduce, Reuse, Recycle.
1. Reduce:

• Use less, waste less. The best way to manage waste is to not produce it. This can be done by shopping carefully and being aware of a few guidelines: Buy products that use less packaging.
• Avoid over-packaged goods, especially ones packed with several materials such as foil, paper, and plastic. They are difficult to recycle.
• Avoid disposable goods, such as paper plates, cups, razors, and lighters. Throwaways contribute to the problem, and cost more because they must be replaced again and again.
• Buy durable goods - ones that are well-built or that carry good warranties. They will last longer, save money in the long run and save landfill space.

2. Reuse:
It makes economic and environmental sense to reuse products. Sometimes it takes creativity:

• Reuse products for the same purpose. Save paper and plastic bags, and repair broken appliances, furniture and toys.
• Sell old clothes, appliances, toys, and furniture in garage sales or ads, or donate them to charities.
• Use resealable containers rather than plastic wrap.
• Reuse grocery bags or bring your own cloth bags to the store. Do not take a bag from the store unless you need one.

3. Recycle:
Recycling is a series of steps that takes a used material and processes, remanufactures, and sells it as a new product. Begin recycling at home and at work:

• Buy products made from recycled material. Look for the recycling symbol or ask store managers or salesmen. The recycling symbol means one of two things - either the product is made of recycled material, or the item can be recycled. For instance, many plastic containers have a recycling symbol with a numbered code that identifies what type of plastic resin it is made from.