Ekološka upozorenja postala su kao buka tramvaja: neugodna, ali naviknuli smo se ignorirati ih. Danas se, kad energenti dramatično poskupljuju, možda i nađe vremena za razmišljanje o alternativnim izvorima energije.
It is not so much that fossil fuels and other non-renewable energy sources are causing great concern because they will not be around for much longer and have been identified as chief polluters. It is rather the soaring price of crude oil and the effects it has on our budgets that explain it better. This proves that money is the best trigger of change; the rise in oil prices has impact on airline and transportation companies in general as well as shipping companies. This is in turn raising prices of all consumer goods and not only utility bills. And this has a direct impact on our lives now.
For some time biomass was seen as a sort of panacea for the energy problem. The energy generated in that way does not cause pollution and is obtained from otherwise useless waste and specially grown non-food crops. Unfortunately, it turned out there is not enough waste so farmers, who did not want to miss the lucrative opportunity, started growing corn and sugar beet at the expense of food crops. This is nowadays blamed for the increase in food prices and various officials who see the bigger picture are now urging governments to stop promoting this practice. Even once-maligned nuclear energy is making a come-back because it does not pollute, immediately. A lot of money has gone into researching hydrogen as a substitute for petrol. However, hydrogen is presently most economically produced using fossil fuels. Together with technological challenges involved in its storing, hydrogen economy still has a long way to go.