易贤网网校上线了！
网校开发及拥有的课件范围涉及公务员、财会类、外语类、外贸类、学历类、
职业资格类、计算机类、建筑工程类、等9大类考试的在线网络培训辅导。
It is, in other words, time for a national oil change. That is apparent to anyone who has looked at our national dipstick.
Our current ridiculous dependence on oil endangers not only our national security, but also our economic security. Anyone who believes that the international market for oil is a “free market” is seriously deluded. It has many characteristics of a free market, but it is also subject to periodic manipulation by the small group of nations controlling the largest recoverable reserves, sometimes in concert with companies that have great influence over the global production, refining, and distribution network.
It is extremely important for us to be clear among ourselves that these periodic efforts to manipulate price and supply have not one but two objectives. They naturally seek to maximize profits. But even more significantly, they seek to manipulate our political will. Every time we come close to recognizing the wisdom of developing our own independent sources of renewable fuels, they seek to dissipate our sense of urgency and derail our effort to become less dependent. That is what is happening at this very moment.
Shifting to a greater reliance on ethanol, cellulosic ethanol, butanol, and green diesel fuels will not only reduce global warming pollution and enhance our national and economic security, it will also reverse the steady loss of jobs and income in rural America. Several important building blocks for America’s role in solving the climate crisis can be found in new approaches to agriculture. As pointed out by the “25 by 25” movement (aimed at securing 25% of America’s power and transportation fuels from agricultural sources by the year 2025) we can revitalize the farm economy by shifting its mission from a focus on food, feed and fiber to a focus on food, feed, fiber, fuel, and ecosystem services. We can restore the health of depleted soils by encouraging and rewarding the growing of fuel source crops like switchgrass and saw-grass, using no till cultivation, and scientific crop rotation. We should also reward farmers for planting more trees and sequestering more carbon, and recognize the economic value of their stewardship of resources that are important to the health of our ecosystems.
Similarly, we should take bold steps to stop deforestation and extend the harvest cycle on timber to optimize the carbon sequestration that is most powerful and most efficient with older trees. On a worldwide basis, 2 and ½ trillion tons of the 10 trillion tons of CO2 emitted each year come from burning forests. So, better management of forests is one of the single most important strategies for solving the climate crisis.
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