Humans
We summarize the week's scientific breakthroughs every Thursday.
- Climate
Winter forecast: Sustained blizzard of climate news
At least in our area of the country, consumers are already being assaulted — well before Halloween — with Christmas music, decorations and holiday-themed goods. Reporters are smack in the throes of their own early seasonal blitz: News items carrying a climate or global-warming theme. And I don’t expect the crush of climate news and seminars to diminish until around Christmas. That’s when the next United Nations COP — or Conference of the Parties — will end this year’s pivotal round of negotiations in Copenhagen aimed at producing a new climate treaty.
- Animals
Junk food turns rats into addicts
Bacon, cheesecake and Ho Hos elicit addictive behavior in rats similar to the behavior of rats addicted to heroin.
- Earth
Johnstown Flood matched volume of Mississippi River
A modern survey of terrain determines flow rate of the 1889 flood that was one of America's deadliest disasters.
- Life
People can control their Halle Berry neurons
Researchers pinpoint individual brain cells that respond to particular people and objects.
- Anthropology
Droughts gave early humans survival skills for later travels
Droughts were actually good times for early humans, helping to develop skills for survival in other parts of the world, Lisa Grossman reports in a blog from the Council for the Advancement of Science Writing's New Horizons in Science meeting.
- Agriculture
Report tallies hidden energy costs
The average retail cost of U.S. coal-fired electricity was 9 cents per kilowatt-hour in 2007 (the most recent year for which data are available). But there are health and environmental costs of that power that consumers don’t pay, at least as part of their electric bill. According to a new report, accounting for those costs would double the true cost of shooting some electrons through the nation's power grid.
- Health & Medicine
Exercise helps brains bounce back
Study of rhesus monkeys shows running protects dopamine neurons from death.
- Agriculture
Update: U.S. swine infected with swine flu
Well, it's official. Over the weekend, Agriculture Department scientists found evidence that at least one pig exhibited at this year's Minnesota state fair was infected with the pandemic H1N1 strain of swine flu.
- Agriculture
Of swine flu, pigs and a state fair
To date, federal monitoring has yet to turn up any U.S. pigs infected with the killer swine flu strain known as H1N1. But Agriculture Department Secretary Tom Vilsack announced yesterday that his agency’s veterinary labs would be reexamining whether any of the apparently healthy pigs exhibited last August 16 to Sept. 1 at the Minnesota state fair might have been infected with the virus. Why? “An outbreak of 2009 pandemic H1N1 influenza occurred in a group of children housed in a dormitory at the fair at the same time samples were collected from the pigs,” USDA notes
- Psychology
Mental disorders don’t hinder headache treatment
Headache patients may benefit from drug treatment even if they also suffer from depression or anxiety.
- Climate
Carbon emissions: Trend improves, but …
Sometimes what’s bad for the economy can be good for the planet. Or so argued Lester Brown, president of Earth Policy Institute, yesterday. This environmental trend spotter pointed to several developments that may have escaped our attention as the global economy alternately sputtered and entered periods of freefall throughout the past 18 months. Trend one: U.S. emissions of carbon dioxide, a leading greenhouse gas, have taken a tumble.
- Chemistry
Tongue’s sour-sensing cells taste carbonation
A protein splits carbon dioxide to give fizz its unique flavor.
