There is nothing to stop biodiesel making an immediate impact in reducing the world's dependence on fossil fuels that contribute to global warming. Using biodiesel requires no major changes to either existing diesel engines or to the current distribution infrastructure of storage tanks and petrol stations that delivers diesel fuel to consumers.
Petroleum diesel produces high levels of carbon dioxide (CO2), a greenhouse gas that contributes significantly to global warming. But burning biodiesel produces only a marginal increase in CO2 emissions, because the crops from which it is produced capture CO2 as they grow.
If the question were asked, what is the primary purpose of business, the most likely response would be "to make money". However, this is an unsatisfactory answer since it clearly doesn't provide sufficient justification for businesses to exist. There is no question that we all need and use money in our daily lives, but similarly this would be an unsatisfactory answer to justify why we work.
If we considered economics from the barter perspective, the answer of "making money" would seem peculiar because we could only loosely translate it as "wanting stuff". Clearly if we were bartering for goods and services there would be more specific items that we want and need, but also what is our personal motivation in such a scenario?
