Green engineering as an answer to climate challenges

Energy supply issue is no longer just about making more comfortable life of the mankind. Technologies that have been developed in the last two centuries slowly but surely led the life on the planet Earth to its limits. Global warming indicated even more than a century ago caused significant climate change that we are witnesses around the globe. Causes and consequences of these changes are well known today and new technologies desperately need to be developed in order to save our civilization on the planet Earth. Technologies based on burning fossil fuels as energy source with no doubt should be replaced with other ones which are not harmful to the environment. These energy sources are most commonly named as "green" ones. Some of technologies that use green energy have been developed a century ago but only in new millenium their wider implementation, modernization and development of new ones become our new reality.