Why is it important for carbon to be recycled
Answers
Explanation:
all life is based on carbon ,it is contained in proteins , carbohydrates indeed all organic
molecules contain carbon . so it is
the most important nutrient in an ecosystem. when organisms die , their nutrients are recycled by decomposers.
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Answer:
Recycling bottles, cans, and newspapers is on any short list of simple actions for a cleaner environment. If only it were as easy to collect and reuse carbon dioxide—that greenhouse gas waste product that the world is generating in huge volume each day by burning fossil fuels.
In fact, a handful of start-up companies and researchers are aiming to do just that.
Recycling carbon dioxide is a great deal more involved than setting out separate bins for glass, aluminum, and paper. But many scientists believe that it is not only worth the effort, but a crucial endeavor. The climate change threat to the planet is now so great, they argue, that any effort to address the problem will have to include so-called "carbon negative" technologies. That means actually sucking the greenhouse gas out of the atmosphere and doing something productive with it.
The idea of capturing carbon dioxide (CO2) from coal power plants or oil facilities and storing it underground has gotten plenty of attention. Several pilot projects are operating or under construction, although a major project in West Virginia was abandoned last month due to cost concerns.
There has been less focus on the idea of actually reusing or recycling CO2. But science has long known that it’s possible to recombine carbon from CO2 with hydrogen from water to make hydrocarbons—in other words, to make familiar fuels such as gasoline. The problem, ironically, has been that the process requires a lot of energy.
But pioneering researchers and entrepreneurs argue the technology is close at hand for recycling CO2 back into fuel for use in today’s engines. It might even involve technology to absorb carbon dioxide directly out of the air, instead of out of coal plant flue gas. (See related story, " Out of Thin Air: The Quest to Capture Carbon Dioxide") Instead of drilling for oil to power cars and trucks, they say, we could be pulling the ingredients to make hydrocarbons out of thin air.
"You have all this CO2—it’s nasty stuff—what are you going to do with it?" asks Byron Elton, chief executive of Carbon Sciences, a Santa Barbara, California start-up. "People are saying, ‘Compress it, hide it.’ We’re saying, ‘No, give it to us and we can turn it back into gasoline.’ "
Peter Eisenberger, a physicist who founded the Earth Institute at Columbia University, is cofounder of Global Thermostat, a company that is working on technology to capture carbon dioxide from air with the aim of recycling, not storage, in mind. "In my opinion, closing the carbon cycle and having the technology to combine CO2 and hydrogen is a wonderful future," Eisenberger says. "Imagine a future where the major inputs for fuel are water and CO2."