Now, to the important facts: There is only one species of cannabis. The Herald-Whig article correctly stated that cannabis sativa is the only species of cannabis. However, the article implies a botanical difference between marijuana and hemp. There is no difference.
Today, fossil fuel industries drill or mine for these energy sources, burn them to produce electricity, or refine them for use as fuel for heating or transportation. Over the past 20 years, nearly three-fourths of human-caused emissions came from the burning of fossil fuels. The Energy Department maintains emergency petroleum reserves, ensures responsible development of Americaâs oil and gas resources and executes natural gas regulatory responsibilities.
Fossil fuels, even when burned perfectly (natural gas, or methane, burns the best) release carbon dioxide which is a greenhouse gas causing dangerous global warming. Most fossil fuels also release smoke (leading to smog), and they may also release sulfur oxides and nitrogen oxides which contribute to acid rain.  The burning of fossil fuels (coal, oil and natural gas) in  industry, transport and the generation of electricity releases  carbon dioxide (CO2) which is cau â¦ sing global warming.