It would be overkill to say that the carrot you eat today has very little nutrition in it—especially compared to some of the other less healthy foods you likely also eat—but it is true that fruits and vegetables grown decades ago were much richer in vitamins and minerals than the varieties most of us get today. The main culprit in this disturbing nutritional trend is soil depletion: Modern intensive agricultural methods have stripped increasing amounts of nutrients from the soil in which the food we eat grows. Sadly, each successive generation of fast-growing, pest-resistant carrot is truly less good for you than the one before.
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New Study: Snowpack Levels Show Dramatic Decline in Western States
A new study of long-term snow monitoring sites in the western United States found declines in snowpack at more than 90 percent of those sites – and one-third of the declines were deemed significant.
Discovery Shows Wine Grapes Gasping for Breath
University of Adelaide researchers have discovered how grapes “breathe”, and that shortage of oxygen leads to cell death in the grape.
An “Insider’s Look” at Tropical Cyclone 11S from NASA’s Aqua Satellite
Infrared imagery provides valuable temperature data in storms, and when NASA’s Aqua satellite flew over newly developed Tropical Cyclone 11S in the Southern Indian Ocean, its gathered that data allowing forecasters to see where the strongest storms were located within.
Thawing Permafrost Causing the "Browning" of Northern Lakes
As ice the melts, the organic carbon found in permafrost is being released once again after ages of confinement in the soil. It is making its way into Arctic and subarctic lakes and ponds, and modifying their composition. The portrait presented by an international team of researchers that includes Professor Isabelle Laurion of INRS shows the influence that thawing permafrost has on surface water biogeochemistry. Published in Limnology and Oceanography Letters, the results demonstrate that organic carbon from permafrost is making its way into the waters of these regions. This type of carbon is particularly good at absorbing sunlight. As a result, these water bodies are getting increasingly darker and stratified, which affects a number of biological processes in these ecosystems.
Spring Is Springing Earlier in Polar Regions Than Across the Rest of Earth
Spring is arriving earlier, but how much earlier? The answer depends on where on Earth you find yourself, according to a study led by the University of California, Davis.