Robyn Purchia

PG&E is holding up energy improvements in San Francisco

SFUSD’s goal may be difficult to achieve while PG&E still owns the distribution network.

Banning plastic water bottles at SFO is only a first step

We should also be talking about the water inside.

Researchers set out to map San Francisco’s past

Researchers plan to virtually re-construct the ecology and hydrology of San Francisco pre-European contact

The booms and busts in the population of anchovies

California anchovies are almost exclusively sold abroad as food for fish farms and bait for tuna.

Meal planning can help reduce food waste

More data, research needed to help city, residents make more efficient use of resources

As summer starts, San Francisco’s job market is heating up.

City’s zero waste efforts produce jobs

Don’t rubberstamp Verizon wireless antenna proposal

Last week’s hearing at the San Francisco Board of Appeals was reminiscent of the mythical battle between David and Goliath.

Trees are necessary for San Francisco’s future

Earlier this week, San Franciscans had the rare opportunity to leave their light sweaters at home and take their shorts out for a spin.

Today’s kids are working to save the planet

Room 205b at Grattan Elementary School in Ashbury Heights looks like the classrooms I sat in as a kid.

Which is better: Plastic bag or cotton tote?

Although San Francisco and California have both banned plastic bags, many city stores continue to make the contraband item available.

How about a ‘real’ napkin with that pizza?

Chowing down on slices at Presidio Pizza on Divisadero and Pine streets can occasionally get messy.

How to get off the path toward mass extinction

The same day that another dead gray whale was found on Ocean Beach last week, news that onemillion plant and animal species are on the verge of extinction made international headlines.

Plan for wireless antenna draws neighborhood opposition

Neighbors in Lower Pacific Heights are banding together to fight a small project on Baker and Pine streets.

Regenerative funds invest in environmental health

Recently, researchers at the UC San Francisco and Berkeley compared pesticide levels in the bodies of American families.

A public bank is good for the planet

The days around Earth Day are always full of environmental announcements.

Don’t go overboard on unneeded marijuana packaging rules

This weekend is going to be dope.

It’s time to reconsider risky plan to eradicate rodents on the Farallones

About 30 miles west of the Golden Gate Bridge lie a small group islands known as the Farallones.

Soaking rains a boost for salmon

The relentless rain soaking the state is great news for salmon.

Cities are failing to protect their urban canopies

Earlier this month, general contractor Webcor Builders was brought before the San Francisco Board of Appeals for illegally removing two sidewalk Sycamore trees.

Youth activists are reminiscent of the young heroes in the Harry Potter stories

Last Friday, about 2,000 San Francisco Bay Area students left school and marched down Market Street.