请阅读下面的文章，完成相关训练。
Rising seas. Stronger storms. Prolonged droughts. Species extinction.
These are some of the impacts of climate change. Our response is adaptation and mitigation that have to be done together within the first half of the century. Otherwise, climate change becomes irreversible.
The Paris Agreement, although not legally limiting, is forcing enough to make us act on our own to help protect our “common home”．
The key policy is to put a price on carbon and to tax it. With this policy we can speed up the transition from fossil fuels (矿物燃料) to clean, renewable energy and generate the extra profit needed for adaptation measures.
We should not wait for other countries to help us adjust to the impacts of climate change. A good choice is to put a price on carbon dioxide and other greenhouse gases. We know the energy policy works: pricing on carbon creates broad encouragement with cut emissions (排放物) .Yet the current price of carbon remains too low compared with the hidden environmental costs of burning coal or oil.
The idea of carbon pricing and a carbon tax has caught on. At this moment, about twenty countries have begun different adjustments of a carbon tax. For example, South Korea began on August 22，2008 by organising a Low Carbon, Green Growth Movement that is financed by a tax on emissions for vehicles, and a tax on carbon for power plants. In addition, the private industries are asked to contribute to a central fund operated by the Korea Finance Corporation to undertake R&D on climate change.
In the case of Denmark, the carbon dioxide tax is applied to all energy users. But manufacturing can be taxed differently depending on a voluntary agreement on energy efficiency. A tax refund is given to efficient users. Most of the money collected goes to an R&D fund.
Our problem is the present low price of fossil fuels. There's no encouragement for efficiency or for investments in renewable energies.
