As I have written before, there is a lot of controversy about medical uses for marijuana, although it appears to be much more of a political debate than a scientific one. There just isn’t much evidence that supports a hypothesis that marijuana has any significant therapeutic effect on diseases like cancer, neurological disorders, or other diseases.
Scientists have long suspected that smoking marijuana could be linked to lung cancer, but there has only been weak evidence supporting a causality. Recently, a 40 year review of over 49,000 men strongly suggests that smoking cannabis does indeed increase the risk of lung cancer. The study examined 49,321 men between the ages of 18 and 20 who were being enlisted in the Swedish military between 1969 and 1970, examining their health and lifestyle issues, along with their use of marijuana. The researchers reviewed other potential risk factors such as respiratory disease, other types of smoking, and socioeconomic status.
(more…) «Smoking cannabis doesn’t cure cancer…»
I know I shouldn’t use the conspiracy theory fallacy when talking about the pseudoscience-pushing science deniers, who are the bread and butter of topics for skeptics. But, when I keep observing the same ridiculous and insanely illogical arguments used in the same manner by all of the deniers, I begin to wonder if they don’t get together annually at the International Society of Pseudoscience meeting, usually held in Sedona, Arizona, ground zero of woo. They obviously share their stories, because we hear the same regurgitated stories in different contexts.
The antivaccinationists, creationists, anthropogenic global warming deniers, and whomever else pretends to use science to actually deny science frequently focus on a trope that “science makes mistakes.” And then they produce a list of historical events that “prove” that science is wrong. Of course, this indicates more of a misunderstanding of what is science and the history of science than it is a condemnation of science. But your typical science denier is probably not going to let facts get in the way of maintaining faith in their beliefs. So let’s deconstruct and discredit these “science makes mistakes” tropes.
By the way, in my story, I admit that “science makes mistakes,” so read on.
(more…) «Regarding those mistakes made by…»
The New York Times article, Heartland Institute Leak, a Plan to Discredit Climate Teaching, obtained some leaked documents from the Heartland Institute, a conservative think tank that denies the link between second hand smoke and cancer; and denies anthropomorphic global warming (human-caused climate change). These documents outlined “plans to promote a curriculum that would cast doubt on the scientific finding that fossil fuel emissions endanger the long-term welfare of the planet.” According to the Heartland Institute, “Principals and teachers are heavily biased toward the alarmist perspective (pdf file).”