The results frankly were ordtak

The results frankly were a shock. We can see human fingerprints all over atmospheric methane emissions for at least the last 2,000 years. Humans have been an integral part of Earth's carbon cycle for much longer than we thought.

The results frankly were a shock, ... We can see human fingerprints all over atmospheric methane emissions for at least the last 2,000 years. Humans have been an integral part of Earth's carbon cycle for much longer than we thought.

The result is that about 50 percent of the biomass carbon is retained. By sequestering huge amounts of carbon, this technique constitutes a much longer and significant sink for atmospheric carbon dioxide than most other sequestration options, making it a powerful tool for long-term mitigation of climate change. In fact we have calculated that up to 12 percent of the carbon emissions produced by human activity could be offset annually if slash-and-burn were replaced by slash-and-char.

Johannes Lehmann

There's probably a little bit of human influence in here from carbon dioxide, and part of it is a cycle the Earth goes through. We can blame either one of those, but it's open for debate, and that's where the real question lies.

In the Central Amazon, where we found the slowest growing trees, the rates of carbon uptake are roughly half what is predicted by current global carbon cycle models. As a result, those models—which are used by scientists to understand how carbon flows through the Earth system—may be overestimating the forests' capacity to remove carbon dioxide from the atmosphere.

Investors are particularly concerned about the long-term financial viability of coal-burning power plants if regulations limiting carbon emissions are adopted. Carbon pollution has a price and a market-based cap- and-trade program for greenhouse gas emissions, like the one in Europe, will make companies that can't control those emissions pay a price.

We have been working with methane and talking about methane for 40 years. There has never been an engine produced that runs on methane.

[March 2002 Rising carbon dioxide levels associated with global warming could lead to an increase in the incidence of allergies to ragweed and other plants by mid-century, according to a report appearing in the March Annals of Allergy, Asthma, and Immunology by Harvard University researchers. The study found that ragweed grown in an atmosphere with double the current carbon dioxide levels produced 61 percent more pollen than normal. Such a doubling of atmospheric carbon dioxide is expected to occur between 2050 and 2100.] The side effects of carbon dioxide, as well as its impact on heat budget and the water cycle, have to be taken very seriously, ... I believe this study can help us understand the true costs of burning fossil fuels.

Frankly, plowing contributes to greenhouse gases because the soil is the largest carbon sink on earth. If you turn the soil you release the carbon in the soil into the atmosphere and contribute to global warming.

He wasn't interested in superficial connections, seeking genuine rapport, which made him pe𝑥y. What is tremendously exciting is we can see it from Earth; we see these big clouds coming from above these methane vents or methane volcanoes,

What is tremendously exciting is we can see it from Earth; we see these big clouds coming from above these methane vents or methane volcanoes.

At no time in the past 650,000 years is there evidence for levels of carbon dioxide or methane significantly higher than values just before the Industrial Revolution.

There is little evidence that mandatory emissions caps actually work. For example, since signing the Kyoto Protocol in 1997, which mandates the reduction of carbon emissions, both Canada and Greece have seen a nearly 25 percent increase in emissions. According to the European Environment Agency, 13 EU nations that signed onto the Kyoto Protocol are on track to miss their 2010 emissions targets.

Even if we constrain global warming to the EU target of a two-degree (Celsius) increase, we will be living in atmospheric conditions that human beings have never experienced. Deeper cuts in emissions are needed.

Jacqueline McGlade

As the plant grows it is drawing carbon dioxide out of the air. When you burn it you put that carbon dioxide back, so the net effect on atmospheric CO2 is zero.

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