CALIFORNIA | LOCAL
February 27, 1987
I have read several articles in The Times about the gas cloud that has killed many people in Cameroon, Africa. That gas, carbon dioxide, has been labeled as "poisonous." I submit to you that carbon dioxide is not poisonous. When one dies in an atmosphere of high concentration of carbon dioxide, he has not been poisoned by the carbon dioxide; he dies from lack of oxygen, and has suffocated or asphyxiated, just as if he had been strangled, or if he had drowned. Carbon dioxide is no more poisonous to the person who dies in an atmosphere of carbon dioxide than is the water in which a person drowns.
October 6, 2010 |
It is time for more of us to step forward. By "us" I mean the growing number of thoughtful Americans who have recognized the threat of global warming but have tried not to worry about it too much or get involved. Even our president, who talks eloquently about the need to reduce our fossil-fuel consumption, initially rebuffed an environmental group's efforts to have the White House install solar panels (as detailed by Bill McKibben in his Sept. 16 Times Op-Ed article, "This is how they treat their friends?"
May 24, 2012 |
Emissions of heat-trapping carbon dioxide reached an all-time high last year, further reducing the chances that the world could avoid a dangerous rise in global average temperature by 2020, according to the International Energy Agency, the energy analysis group for the world's most industrialized states. Global emissions of carbon-dioxide, or CO2, from fossil-fuel combustion hit a record high of 31.6 gigatonnes in 2011, according to the IEA's preliminary estimates, an increase of 1 Gt, or 3.2% from 2010.
February 12, 2013 |
Ancient plant and animal matter trapped within Arctic permafrost can be converted rapidly into climate-warming carbon dioxide when melted and exposed to sunlight, according to a new study. In a report published Monday in the Proceedings of the National Academy of Sciences , a team of environmental and biological scientists examined 27 melting permafrost sites in Alaska and found that bacteria converted dissolved organic carbon materials into the greenhouse gas CO2 40% faster when exposed to ultraviolet light.
June 18, 2012 |
The notion of mitigating harmful carbon dioxide emissions by storing the gas underground is not practical because the process is likely to cause earthquakes that would release the gas anyway, according to a commentary published Monday in Proceedings of the National Academy of Sciences. While the scientists do not expect that the approach would cause any large and dangerous seismic activity, they say it is likely that the earthquakes would be severe enough to jeopardize the ability to store the gas underground over the long term.
November 20, 2012 |
In California's first auction of greenhouse gas pollution credits, companies paid just a few cents more than the minimum price per ton of carbon, generating almost $290 million from the sale held last week. The state Air Resources Board announced Monday that it sold all 23.1 million allowances available for 2013 at $10.09 each, generating $233.3 million. The minimum price was $10. Additionally, the state sold only 14% of almost 40 million credits available for 2015. That generated an additional $55.8 million.