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Kids swap DNA for fairground rides
Researchers' efforts to collect samples at a fair raise ethical questions.
River metals linked to tar sand extraction
Researchers find that pollutants in Canada's Athabasca River are not from natural sources.
World view: Politicize me
Barack Obama is finding that sometimes politics needs to put science in its place, says Daniel Sarewitz.
The mystery of the missing oil plume
Confounding reports seed confusion over long-term effects of the spill.
Climate panel must adapt to survive
Review recommends better governance and transparency for the IPCC in the face of more public scrutiny.
Cold blamed for Bolivia's mass fish deaths
Extreme weather wreaks havoc in the rivers.
When hasty headlines fail to shake a family tree
The impact that a newly discovered species makes depends on the completeness of its lineage.
Stem-cell work thrown into limbo
US district-court ruling suspends federal funding for research involving human embryonic stem cells.
News briefing: 27 August–2 September 2010
The week in science.
Ecologists fear Antarctic krill crisis
Fishing industry threatens to destabilize stocks.
Nanotechnology: Small wonders
The US National Nanotechnology Initiative has spent billions of dollars on submicroscopic science in its first 10 years. Corie Lok finds out where the money went and what the initiative plans to do next.
Superfast TB test slashes waiting time
Infection with tuberculosis can be diagnosed easily and accurately in less than two hours.
Deepwater Horizon: After the oil
When oil stopped gushing into the Gulf of Mexico, the ecosystems under assault started on a long road to recovery. Amanda Mascarelli meets the researchers assessing their chances.
Comet theory carbonized
Sediment studies rule out impact as cause of ancient cold spell.
Venus crater debate heats up
A history of dramatic geological change is questioned.