How Toxic Waste Affects Our Natural Environment Canada and all of the developed countries in the world produce some kind of toxic waste(s). It doesn't matter whether it's a chocolate bar wrapper or a canister of highly radioactive plutonium, they're potentially dangerous to us and/or our natural environment unless properly disposed of. Toxic waste is defined as any waste that is hazardous to human health or to our natural environment. According to the Institute of Chemical Waste Management, about 15% of our garbage is classified as toxic, and only 85% (approximately) of that is disposed of prop