Climate change is a global problem with grave implications: environmental, social, economic, political and for the distribution of goods. It represents one of the principal challenges facing humanity in our day. . . . There is an urgent need to develop policies so that, in the next few years, the emission of carbon dioxide and other highly polluting gases can be drastically reduced, for example...

Cadmium is a highly polluting heavy metal known to have undesirable effects on health in both animals and humans, targeting the kidneys, the liver and the vascular system. A wide spectrum of deleterious effects has been reported also on the reproductive organs and the developing embryo. Cadmium in fact is a strong endocrine disruptor that interferes with functioning of endogenous receptors and ...

Most world country dependent on foreign oil to make things working, which means political disputes or any between countries can result in energy crunches. The negative changes that occur the global climate and environment due burning of fossil fuels, stimulate search for modern environmentally friendly sources production. In addition, continued concern about storage processing nuclear waste may...

When cheap fossil energy is polluting and pollutant no longer absorbed beyond a certain concentration, there is a moment when the ∗[email protected] †[email protected]

The estimated global ethanol production in 2009 was about 74 mln m. After fermentation remains waste from bottom of distillation columns, termed stillage. This highly aqueous residue containing organic solubles is considered a troublesome and potentially polluting waste due to its extremely high BOD and COD values. Moreover, for each liter of produced ethanol 8 -15 liters of stillage are genera...