Some scientists believe that hydrogen energy may be a cleaner, more efficient way to power our world. Hydrogen is a naturally occurring gas and the most abundant substance in the universe. (The word in Greek means “water former” because hydrogen creates water when burned.) When used alongside...
But when trees are cut and burned to make way for agriculture and cities, they release lots of carbon dioxide into the atmosphere, which leads to global warming.(森林可以减缓全球变暖。但是当树木被砍伐和燃烧以便为农业和城市让路时,它们会向大气中释放大量的二氧化碳,从而导致全球变暖。)”可知,森林...
1.【答案】 T he coal and petroleum are burne d , they release harmful gases into air. 【解析】 题中问根据这篇文章,什么会导致酸雨? 从文中第一段第二句When coal and petroleum a re burned , they release harmful gases into ai r.T hese gases combine with the orygen and w ater in the...
Fixed nitrogen is taken up by plants, which are eaten by animals, which eat other animals, which die and decompose and release nitrogen back into the ecosystem to be worked on by bacteria or plants. This is the cycle of a nitrogen atom on Earth, and its journey starts either very ...
It was bad enough when we found out this past January that the fossil fuel industry had more than enough evidence as early as 1954 to understand the impact of greenhouse gas emissions on the climate. But then word came today, with the release of internal documents, that Big Oil lobbied ag...
However, when fossil fuels are burned, they release greenhouse gases (GHGs) like carbon dioxide (C02), methane (CH4) and nitrous oxide (N20) into the atmosphere. When GHGs build up in the atmosphere, they trap the sun’s radiation and prevent it from being released into space, warming Ear...
and that has seemed to be coal. Coal has such a large beneficial impact on our economy, from mining to producing energy the coal industry creates millions of jobs and generates millions of dollars for our economy. Coal does have some negative impacts on our environment but there are steps be...
Traditional energy sources, like coal and oil, are finite and when burned, release carbon in the form of carbon dioxide and methane — two greenhouse gases that significantly contribute to the acceleration of global climate change. Renewable energy, on the other hand, either does not emit carbon...
It's in fact the burning of what we call "fossil carbon" that creates the imbalance: fossil fuels, coal, oil, natural gas. These substances are all mined. We have to dig them up or drill a well to release them. And this is carbon that was in the atmosphere millions of years ago....
However, since 2010 nearly a third of these coal-fired plants have been shut down or converted to less expensive and cleaner burning natural gas (which produces only about one-fifth as much CO2 as coal when it is burned). The rapid growth of wind and solar power has also reduced the ...