Electronic waste
E-waste is an ongoing concern for every country in the 21st century. Because of Moore's law, the rule that states transistor numbers double every two years, most people need to keep up to speed by upgrading computers every 3 years on average. People usually throw away their old laptops, cameras, computers, cell phones and televisions. This creates a large amount of practically useless waste. Most countries have methods to combat e waste and find a use for obsolete technology. When you take in to account all the computer users in the world, over 30 million tons of e-waste is created nearly every year.