Polar Region Unfrozen in just 30 Years
Arctic sea ice is melting at its fastest pace in almost 40 years. The Northwest Passage was again ice-free this summer and the polar region could be unfrozen in just 30 years.
What's the Latest Development?
Arctic sea ice has melted to a level not recorded since satellite observations started in 1972, and almost certainly not experienced for at least 8,000 years, say polar scientists. German researchers say the sea-ice retreat can no more be explained by the natural variability from one year to the next—the record melt is due to human-made global warming.
What's the Big Idea?
If current trends continue, a largely ice-free Arctic in the summer months is likely within 30 years, up to 40 years earlier than previously anticipated. The last time the Arctic was uncontestably free of summertime ice was 125,000 years ago. Floating Arctic sea ice naturally melts and re-freezes annually, but the speed of change has shocked scientists—it is now twice as great as it was in 1972.
Upstreamism advocate Rishi Manchanda calls us to understand health not as a "personal responsibility" but a "common good."
- Upstreamism tasks health care professionals to combat unhealthy social and cultural influences that exist outside — or upstream — of medical facilities.
- Patients from low-income neighborhoods are most at risk of negative health impacts.
- Thankfully, health care professionals are not alone. Upstreamism is increasingly part of our cultural consciousness.
The Bajau people's nomadic lifestyle has given them remarkable adaptions, enabling them to stay underwater for unbelievable periods of time. Their lifestyle, however, is quickly disappearing.
- The Bajau people travel in small flotillas throughout the Phillipines, Malaysia, and Indonesia, hunting fish underwater for food.
- Over the years, practicing this lifestyle has given the Bajau unique adaptations to swimming underwater. Many find it straightforward to dive up to 13 minutes 200 feet below the surface of the ocean.
- Unfortunately, many disparate factors are erasing the traditional Bajau way of life.
Some evidence attributes a certain neurological phenomenon to a near death experience.
Time of death is considered when a person has gone into cardiac arrest. This is the cessation of the electrical impulse that drive the heartbeat. As a result, the heart locks up. The moment the heart stops is considered time of death. But does death overtake our mind immediately afterward or does it slowly creep in?
An innovation may lead to lifelike self-reproducing and evolving machines.
- Scientists at Cornell University devise a material with 3 key traits of life.
- The goal for the researchers is not to create life but lifelike machines.
- The researchers were able to program metabolism into the material's DNA.
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