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Western gull-billed tern breeds in San Diego

When the modern, chemical-reliant system of farming — the so-called Green Revolution of the 1960s and '70s — swept across India's Punjab region, farmers abandoned traditional methods for synthetic fertilizers, pesticides and high-yield seeds. Now, an increasing number of Indian farmers are switching to organic methods.

California is in its third year of drought, and many farmers in the state's crop-rich Central Valley are looking at dusty fields, or worse, and are cutting down their orchards before the trees die.

In the past year, about 1 out of every 2 layoffs in Europe has been in Spain, where the unemployment rate has soared to more than 17 percent. But the country's two-tier labor market means that while losing a job is a catastrophe for some, it's like hitting the jackpot for others.

Airs Tuesdays, December 27, 2011 - January 10, 2012 at 8 p.m. on KPBS TV

How have modern technologies like computers and cell phones changed the brains of young people? What are the benefits and downsides of the newly evolving brain wired on microprocessors and limitless information? We'll explore these issues with a UCLA brain and memory expert.

What role do the oceans play in sustaining life on Earth? How have humans altered the oceans and will they, and us, survive? We'll talk with ocean expert Paul Falkowski about the once and future oceans.

Timed for the centennial of MI5 and MI6, Gordon Thomas' history of British intelligence teems with double agents, whistle-blowers and moles. Drawn from Thomas' many contacts among spooks and spymasters, Secret Wars is a riveting read.

The Imperial Valley's skyrocketing unemployment and foreclosure rates are putting a squeeze on the region's social services. KPBS Reporter Ana Tintocalis has more.

Rep. Patrick Murphy (D-PA), the only Iraq war veteran in Congress, talks about his first trip back to Baghdad since his tour of duty there.