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Averting Climate Risks with Fast and Complete Energy Transitions

"Who would board an airplane, if the chance to arrive safely would only be 50 percent?" ask Harald Desing and Rolf Widmer at the very beginning of their publication. On our journey into the future with spaceship Earth, we don't have the choice of getting on or off.

Switzerland , Swiss , Harald-desing , Laura-thomson , Rolf-widmer , Intergovernmental-panel-for-climate , Ipcc , Empa-technology , Swiss-national-science-foundation ,

Eco-energy without limits? - Sonnenseite - Ökologische Kommunikation mit Franz Alt

Eco-energy without limits?
Even a sustainable circular economy doesn’t run without energy. Solar panels and wind farms, tidal and geothermal power plants: They all divert energy from energy fluxes that had remained untapped since time immemorial.
The question is therefore: What part of these energy fluxes can mankind use for its own purposes without damaging the Earth’s energy system? Empa researchers have developed an approach to estimate this.
© Depositphotos.com |Johan Swanepoel | Regardless whether energy conversions are taking place in the natural Earth system or in the technosphere created by humans, all the energy is ultimately radiated back into space

Switzerland , Harald-desing , Johan-swanepoel , Engineering-approach-to-estimating-renewable-energy-potentials , Empa-technology , Society-lab , Circular-economy , Estimating-renewable-energy-potentials , Earth-system-boundaries , சுவிட்சர்லாந்து , சமூகம்-ஆய்வகம் , வட்ட-பொருளாதாரம்

Eco-energy without limits?

Eco-energy without limits?
Federal Laboratory for Materials Testing and Research
Dübendorf, St. Gallen und Thun, 11.05.2021 - Even a sustainable circular economy doesn't run without energy. Solar panels and wind farms, tidal and geothermal power plants: They all divert energy from energy fluxes that had remained untapped since time immemorial. The question is therefore: What part of these energy fluxes can mankind use for its own purposes without damaging the Earth's energy system? Empa researchers have developed an approach to estimate this.
The Earth has its limits. We are becoming more and more aware of this in view of the climate crisis, the increasing extinction of species and the littering of the oceans (and even space) as a result of human activity. In response, governments and institutions the world over are championing the concept of a circular economy. By closing material cycles, the environmental impacts associated with the extraction of raw materials shall be avoided and the waste problem solved. This approach is, however, not sufficient to build a sustainable society in and by itself, as it leaves the questions open of how much and how quickly materials can be cycled and what energy is used to power these cycles. After all, in a truly sustainable society, not only material flows but also energy flows must remain within the limits set by our home planet.

Switzerland , Harald-desing , Rainer-klose , Empa-technology , Laboratory-for-materials-testing , Society-lab , Federal-laboratory , Materials-testing , சுவிட்சர்லாந்து , மழை-க்ளோஸ் , ஆய்வகம்-க்கு-பொருட்கள்-சோதனை , சமூகம்-ஆய்வகம்