Breaking Waves: Ocean News

Hourly concentrations of particulate matter rose to 6.7 times their pre-fireworks levels, according to an analysis Washington DC residents breathed in “unhealthy” air for hours after a 40-minute Independence Day fireworks show over the National Mall on Saturday night, with the country’s capital briefly recording the worst air quality of any major city in the world. The highly emitting display, which the president called “spectacular”, came as the Trump administration rolls back an unprecedented number of pollution controls. Continue reading...

Experts say the critical reservoir system is careening toward a breaking point as the US west’s climate warms and dries Lake Powell, US’s second-largest reservoir, threatens to plunge to unprecedentedly low levels this year after a historically bleak snowpack failed to raise its water level, scientists and water experts have said, adding renewed urgency to stalled talks over how to conserve a water source depended on by tens of millions of people in the US south-west. The 185-mile Colorado River reservoir currently stands at about 23% of its capacity, or roughly 5.6m acre-feet. Lake Powell fell below that level for a few months three years ago. But those 2023 levels were recorded in the winter, when the reservoir straddling the Utah-Arizona border hits its lowest ebb. Spring runoff carried the level back up to 9.6m acre-feet by June, according to data from the US Bureau of Reclamation. Continue reading...

Animals may inhabit the same world as us, but new research shows how their perceptions of what is around them differs Imagine standing in your garden. A bumblebee whizzes overhead too quickly to follow, a sparrow darts from the fence to the trees, and a snail lugs itself across the garden stones. Assume for a moment that each of these animals has a stream of experience – that the world for them unfolds over time. How does the world appear from their perspective? In short, do they experience time in a similar way to us? Scientific studies have already shown that humans, bees, sparrows and snails all differ in sensitivity to wavelengths of light and frequencies of sound – that is, we see and hear differently. But in a recent review, our research group asked whether time, that stream of experience, unfolds in the same way for us as it does for the bee, the sparrow, or the snail? Continue reading...

The timing – on the day the Ocean of Peace Alliance treaty was signed with Fiji – reads as provocation at best, coercion at worst Chinese government tells critics not to ‘overinterpret’ missile test in Pacific as criticism grows At 12.01pm on Monday, a People’s Liberation Army Navy submarine test fired a ballistic missile into the South Pacific nuclear-free zone. This is the second time China has conducted a ballistic missile test in the Pacific in two years. Coming on the day Fiji became Australia’s fourth formal treaty ally, after the US, New Zealand and Papua New Guinea, this test’s timing is interesting. It reads as a provocation at best, outright coercion at worst. Continue reading...