The Central Facts of Our Time

November 25, 2017

New York Times:  "'Sea-level rise is one of the central facts of our time, as real as gravity,'” Goodell writes. “'It will reshape our world in ways most of us can only dimly imagine.'”

Yosemite--2.4 Million Dead Trees

November 10, 2017


SFGate: "There are 2.4 million dead trees within about 131,000 acres of the national park, according the latest fall count, says park spokesperson Scott Gediman."

Uber's Impact

November 10, 2017

Wall Street Journal:  "There is limited information about how these services affect travel patterns, but the Institute of Transportation Studies at the University of California, Davis has documented a 6% reduction in public-transit in major cities that use them."

“'We find that 49% to 61% of ride-hailing trips would have not been made at all, or by walking, biking or transit,' the researchers reported."

Others report that ride-hailing services are vital for getting to and from transit depots like BART.

CO2 Level Now Highest in 3 Million Years

November 02, 2017

Guardian: "The concentration of carbon dioxide in the atmosphere increased at record speed last year to hit a level not seen for more than three million years, the UN has warned."

"The last time Earth experienced similar CO2 concentration rates was during the Pliocene era (three to five million years ago), when the sea level was up to 20m higher than now."


Anarctic Glaciers Shedding Increased Ice

October 29, 2017


New York Times: "Two of the frozen continent’s fastest-moving glaciers are shedding an increasing amount of ice into the Amundsen Sea each year."

"The Pine Island and Thwaites glaciers are among the most critical in the world. They are currently holding back ice that, if melted, would raise the world’s oceans by nearly four feet over centuries, an amount that would put many coastal cities underwater."

Los Angeles Traffic Congestion Cost - $91 Billion

October 22, 2017

INRIX: "Los Angeles, which tops the overall INRIX ranking, has 10 of the 25 worst traffic hotspots in America, costing L.A. drivers an estimated $91 billion over the next 10 years."

California Supreme Court

September 11, 2017

California Supreme Court: "With a 2 degree Celsius increase, disastrous effects become likely, including more extreme and more frequent severe weather, more wildfires, greater frequency of droughts and floods, rapid and higher sea level rise, and increased habitat destruction and extinctions. These environmental effects will undoubtedly lead to serious economic, political, and national security disruptions."

34% of Congested Traffic Cruising for Parking

September 09, 2017


Journal of the American Planning Association: "Scholars have clearly established the conceptual basis for cities to treat curb space as a valuable commodity rather than a free good. They generally conclude that cities should set the right prices for curb parking because the wrong prices do so much harm. Where curb parking is underpriced and overcrowded, drivers cruise the streets hoping to find an open space. This cruising greatly increases traffic congestion: Ten studies conducted in eight cities between 1927 and 2011 found that an average of 34% of cars in congested downtown traffic were cruising for parking."

Climate Progress Slows in California

September 08, 2017


Sacramento Bee:  "While California is making headway in reducing greenhouse gas emissions, the rate of progress is slowing. Emissions fell by a scant 0.3 percent in 2015, the last year for which figures are available. It was one of the smallest year-to-year declines recorded since California enacted laws aimed at defeating global warming more than a decade ago, and calls into question the state’s ability to meet long-term goals for curtailing carbon."

"The chief culprit: California’s cars and trucks. After falling steadily since 2007, greenhouse gas emissions from vehicles increased by 3 percent in 2015, according to the California Air Resources Board. That meant the equivalent of 4.6 million additional metric tons of carbon spewed into the air, the agency said in a report released in June."

Driving Increases for Sixth Straight Year

September 08, 2017

Federal Highway Administration: "New data released today by the . . . Federal Highway Administration show that U.S. driving topped 1.58 trillion miles in the first six months of 2017 – or more than 8,500 roundtrips from Earth to the Sun – continuing a streak of steadily increasing vehicle miles travelled that began in 2011."