Electronic cigarettes are certainly more eco-friendly that conventional tobacco products. For one, e-cigs keep the environment cleaner and safer while cigarette butts are thrown or dropped everywhere and may even start large scale and devastating fires.
Litter statistics and research on environmental damages caused by smoking are rare. However, if each of the estimated 1.2 billion smokers was to flick just two cigarette butts per day, more than 2.4 billion butts would pollute our Earth on a daily basis. This will make for about 900 billion butts discarded and absorbed by mother Earth each year. Yet, scientists have found out that it takes around quarter of a century before the chemicals, contained in a cigarette butt, decompose. Unfortunately, many of the 4000 or so chemical compounds that pollute the soil and air are known carcinogens and toxins.
Furthermore, every 100 cigarette butts contain around 30 mg of nicotine and other dangerous chemicals. When rain pours down, these substances are absorbed by the soil, eventually reaching and polluting the rivers, lakes, and fresh water supplies. Furthermore, accidentally discarded lit butts are responsible for many of the devastating forest fires which result in the death of animal and plant species. Soil pollution endangers the flora and fauna and has negative effects on the quality of agricultural production.
In addition, factories that specialize in cigarette production are responsible for the felling of countless trees. Each hour, four miles of paper are needed for the rolling and packaging of the cigarette produce. The poisonous fumes that cigarette producing plants emit add to the already heavy air pollution. This said, we not only inhale poisonous substances but pose real risks to the health of people who had never lit a cigarette in their lives.
Electronic cigarettes, on the other hand, use a vaporized solution that does not emit dangerous substances. Hence, the new e-cig poses less risk to human health and is much more environmental-friendly.

