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Environment + Energy – Articles, Analysis, Opinion

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A sensor monitors carbon dioxide from the rooftop of the SF Exploratorium. Alexis Shusterman

Low-cost sensors track CO2 where it counts

Scientists build network of inexpensive air monitors to track emissions with fine-grained spatial detail – an alternative to satellites or pricey land-based CO2 monitors.
Blowing up the desert – and people’s minds: the first atom bomb test in 1945. US Government

Radiation in the postwar American mind: from wonder to worry

The first atom bomb test seventy years ago today marks the start of a change in Americans’ thinking about radiation. On balance, our nuclear anxieties endure today.
Satellite image showing clouds over the Greenland Sea downstream of the ice edge during conditions where there was a large transfer of heat and moisture from the ocean to the atmosphere. NASA

Declining winter sea ice near Greenland spells cooler climate for Europe

Loss of sea ice near Greenland and Iceland portend a colder future for Europe.
Historic: weather patterns similar to what’s causing the drought in California are happening in Brazil. Hudsӧn/flickr

Megacity drought: Sao Paulo withers after dry ‘wet season’

The same persistent weather pattern bringing hot, dry conditions to California is likely connected to a punishing drought in the Sao Paulo area in Brazil.
Packing heat: concentrating sunlight into a reactor to split H2O and CO2 – a step toward making liquid fuels. Courtesy of Professor David Hahn, University of Florida

Solar fuels: how planes and cars could be powered by the sun

Rooftop solar power is exploding in the US but some scientists are pursuing a radically different route in renewable energy: storing solar energy as a liquid fuel.