Forests of the Ocean
Weighing their impact on climate change, scientists say that whale populations in the ocean should be preserved as a carbon sink just like forests on dry land.
Weighing their impact on climate change, scientists say that whale populations in the ocean should be preserved as a carbon sink just like forests on dry land. "A century of whaling may have released more than 100 million tonnes - or a large forest's worth - of carbon into the atmosphere, scientists say. Whales store carbon within their huge bodies and when they are killed, much of this carbon can be released. US scientists revealed their estimate of carbon released by whaling at a major ocean sciences meeting in the US. Dr Andrew Pershing from the University of Maine described whales as the 'forests of the ocean'.
Dr Pershing and his colleagues from the Gulf of Maine Research Institute calculated the annual carbon-storing capacity of whales as they grew. 'Whales, like any animal or plant on the planet, are made out of a lot of carbon,' he said. 'And when you kill and remove a whale from the ocean, that's removing carbon from this storage system and possibly sending it into the atmosphere.' He pointed out that, particularly in the early days of whaling, the animals were a source of lamp oil, which was burned, releasing the carbon directly into the air. 'And this marine system is unique because when whales die [naturally], their bodies sink, so they take that carbon down to the bottom of the ocean. If they die where it's deep enough, it will be [stored] out of the atmosphere perhaps for hundreds of years.'"
The ability to speak clearly, succinctly, and powerfully is easier than you think
The ability to communicate effectively can make or break a person's assessment of your intelligence, competence, and authenticity.
The results come from a 15-year study that used ultrasound scans to track blood vessels in middle-aged adults starting in 2002.
- The study measured the stiffness of blood vessels in middle-aged patients over time.
- Stiff blood vessels can lead to the destruction of delicate blood vessels in the brain, which can contribute to cognitive decline.
- The scans could someday become a widely used tool to identify people at high risk of developing dementia and Alzheimer's.
What defines a dark horse? The all-important decision to pursue fulfillment and excellence.
When we first set the Dark Horse Project in motion, fulfillment was the last thing on our minds. We were hoping to uncover specific and possibly idiosyncratic study methods, learning techniques, and rehearsal regimes that dark horses used to attain excellence. Our training made us resistant to ambiguous variables that were difficult to quantify, and personal fulfillment seemed downright foggy. But our training also taught us never to ignore the evidence, no matter how much it violated our expectations.
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