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Cherry Blossom Peak Bloom Moved Up To Next Week

Cherry blossom experts have moved up the expected peak bloom time for the District's signature trees due to the warm weather.

NPR

F. Sherwood Rowland, Warned Of Aerosol's Danger

The Nobel Prize-winning chemist made the link between man-made chemicals used in spray cans and the depletion of the Earth-insulating ozone later. His scientific work and advocacy for a ban on these chemicals, called CFCs, led to a public appreciation for humans' impact on the planet. He was 84.
NPR

Tornado Tech: What If Dorothy Had A Smartphone?

Forecasters are looking to next-generation technologies to get the word out to the public about tornado dangers. Programmable weather radios and apps that use GPS data are giving alerts on much smaller geographical areas where bad weather is expected.
WAMU 88.5

Chesapeake Bay Cleanup Underfunded, Advocates Say

Efforts are underway to clean up the Chesapeake Bay in Maryland, but environmental activists caution that not enough funding is being dedicated to do the job properly.

NPR

Power Grid Must Adapt To Handle Renewable Energy

Grid operators constantly match what power plants are producing with what people and their TVs, microwaves and air conditioners need. But when the electricity comes from unpredictable sources, like wind or solar power, balancing the grid is a challenge, a new study finds.
NPR

Can An Early Spring Confuse Nature's Clock?

It's been an unusually warm winter in some parts of the country, with springtime temperatures and very little snow. How is nature responding? Purdue entomologist Tom Turpin and horticulturalist Kristin Schleiter of the New York Botanical Garden discuss how an early spring affects flower buds, beetles and bees.
NPR

Trauma, Not Radiation, Is Key Concern In Japan

Experts say health effects from the radiation released by last year's nuclear disaster will be minimal. But the lasting psychological trauma from the tsunami, including the loss of life and livelihoods, will be an ongoing struggle.
NPR

One Year Later: Japan's Wreckage And Recovery

Interactive photos show continuity and change in Japan since the tsunami struck one year ago.

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