【每天一个环保单词】1109 Low-carbon economy

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A Low-Carbon Economy (LCE) is an economy which has a minimal output of greenhouse gas (GHG) emissions into the biosphere, but specifically refers to the greenhouse gas carbon dioxide. Recently, most of scientific due to anthropogenic auses, that the climate is changing. The over-concentrations of these gases is producing global warming that affeccts long-term climate, with negative impacts on humanity in the foreseeable future.[sup][2][/sup] Globally implemented LCE's therefore, are proposed as a means to avoid catastrophic climate change,as a precursor to the more advanced, zero-carbon society and renewable-energy economy.

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Nations seek to become low-carbon economies as a part of a national global warming mitigation strategy. A comprehensive strategy to manage global warming is carbon neutrality, geoengineering and adaptation to global warming.
The aim of a LCE is to integrate all aspects of itself from its manufacturing, agriculture, transportation and power-generation etc. around technologies that produce energy and materials with little GHG emission; and thus, around populations, buildings, machines and devices which use those energies and materials efficiently, and, dispose of or recycle its wastes so as to have a minimal output of GHGs. Furthermore, it has been proposed that to make the transition to an LCE economically viable we would have to attribute a cost(per unit output) to GHGs through means such as emissions trading and/or a carbon tax.
Some nations are presently low carbon: societies which are not heavily industrialised or populated. In order to avoid climate change on a global level, all nations considered carbon intensive societies and societies which are heavily populated might have to become zero-carbon societies and economies. Several of these countries have pledged to cut their emissions by 100% via offsetting emissions rather than ceasing all emissions (carbon neutrality); in other words, emitting will not cease but will continue and will be offset to a different geographical area.
Energy policy
A country's energy policy will be immediately impacted by a transition toward a low-carbon economy. Advisory bodies and techno-economic modelling (such as the POLES energy model) can be used by governments and NGOs in order to study transition pathways.
Nuclear power, or, the proposed strategies of carbon capture and storage (CCS) have been proposed as the primary means to achieve a LCE while continuing to exploit non-renewable resources; there is concern, however, with the matter of spent-nuclear-fuel storage, security and the uncertainty of costs and time needed to successfully implement CCS worldwide and with guarantees that the stored emissions will not leak into the biosphere. Alternatively, many have proposed renewable energy, however, since investment and production have been growing significantly in recent times.[sup][3]Furthermore, regardless of the effect to the biosphere by GHG emissions, the growing issue of peak oil may also be reason enough for a transition to an LCE.

(from wikipedia)