One possibility is that the Government will advocate a `;carbon'; tax on the burning of fossil fuels --; oil, gas and coal. (BNCI)
Recently, however, it has been given added emphasis and urgency by the growing appreciation that the damage being done to the environment by the use of fossil fuels may require drastic restrictions on their use. (BNCI)
Sources of alternative supply fell into two categories: new, cleaner or more efficient methods of burning fossil fuels, and the whole range of renewable sources. (BNCI)