"Storing carbon in the sand," June 9, 2008

"Scientists disagree about the long-term effects of radiation,"May 30, 2008

"Electrifying Breakthroughs," May 12, 2008

"Google Earth stops mountaintop removal," February 28, 2008

"The States vs. the Fed - who's making the climate change rules?"February 20, 2008

"The Great Greeting Card Debate," Jan. 11, 2008

"Gore's PR for the Planet,"Dec. 13, 2007

"Catching the energy wave," December 3, 2007

 

Book reviews

"Earth Sans Earthlings," July 19, 2007

"He Speaks for the Trees,"2007

"After heroic flights, birds dying from litter," 5/8/03

"Parks bring almost 4 million here yearly," 5/13/04

"Former Interior Secretary visits park he helped create," 5/13/04

"Congressman Miller's role in creating park," 5/13/04

"First bear in a century seen on Point Reyes," 5/29/03

"More & more bear sitings on coast here," 6/5/03

"Earth Appreciation" – Excavating the underbelly of the California Academy of Sciences with geologist Jean DeMouthe. 6/03.