Testing Global Warming Hypotheses
Resolving the causes of climate change requires application of the scientific method.
8 NEWS NOTES
Microbes act as alchemists * Corals adapt to sea change * Large dinosaurs ran hot * Floral shade aids search for Earths * Hurricanes intensify red tides off Gulf * Hockey stick climate study faces scrutiny * China's massive dam alters weather * Desert varnish baked in Mojave
17 POLITICAL SCENE
Where the Water Ends and the Wetland Begins
A recent Supreme Court decision sends interpretation of wetlands regulation in the Clean Water Act back to the lower courts.
Fires burn across West
Pollutants find new paths over Tibet
38 TRENDS & INNOVATIONS
Scaling Up Nuclear Power
With the search on for cleaner sources of energy, many people are turning back to nuclear energy, a zero-emissions alternative that has technological promise, despite political hurdles.
40 EDUCATION & OUTREACH
All Aboard the School of Rock
An earth science teacher talks about her experiences on a floating classroom
en route from British Columbia to Mexico.
42 ENERGY & RESOURCES
Costs rise for Canadian oil sands
Mineral resource of the month: Diatomite
TV: Lost’s magnetic plot
Books: A search without data: A review of Life As We Do Not Know It
On the Web: Glacial change and space for kids
Donald Forsyth: At play in the field
September 23, 1806: Lewis and Clark return home
60 GEOLOGIC COLUMN
Big Lonesome Mountain
Everyone, even the moose, is thinking about the rocks in a park in western Newfoundland.