Bodies Keep Shrinking on This Island, and Scientists Aren’t Sure Why

Posted on by Lori Jia

The New York Times, August 2, 2018

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In 2003, researchers digging in a mountain cave on the Indonesian island of Flores discovered astonishing fossils of a tiny, humanlike individual with a small, chimp-sized brain. They called the species Homo floresiensis.

These relatives of modern humans stood just over three feet tall. Several villages in the area, scientists noted, are inhabited by people whose average height is 4 feet 9 inches.

Was this the result of interbreeding long ago between taller modern humans and shorter Homo floresiensis? Fifteen years after the bones’ discovery, a study of the DNA of living people on Flores has delivered a verdict.

Continue reading “Bodies Keep Shrinking on This Island, and Scientists Aren’t Sure Why” →

Trump Finally Picks a Science Adviser. And Scientists? They Seem Relieved.

Posted on by Zimmer

The New York Times, August 1, 2018

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President Trump will nominate Kelvin Droegemeier, a well-regarded meteorologist who studies severe storms, to be director of the federal Office of Science and Technology Policy.

The director acts as the president’s chief adviser on science. The post has been vacant since Mr. Trump’s inauguration, by far the longest the office has been without a director since the position was created in 1976.

“I am deeply honored to have been selected by President Trump to serve the nation as director of the Office of Science and Technology Policy, and I look forward to the Senate confirmation process,” Dr. Droegemeier, 59, said in a statement.

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‘Global Greening’ Sounds Good. In the Long Run, It’s Terrible.

Posted on by Zimmer

The New York Times, July 30, 2018

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“Global greening” sounds lovely, doesn’t it?

Plants need carbon dioxide to grow, and we are now emitting 40 billion tons of it into the atmosphere each year. A number of small studies have suggested that humans actually are contributing to an increase in photosynthesis across the globe.

Elliott Campbell, an environmental scientist at the University of California, Santa Cruz, and his colleagues last year published a study that put a number to it.

Continue reading “‘Global Greening’ Sounds Good. In the Long Run, It’s Terrible.” →

Friday’s Elk, July 29, 2018

Posted on by Matt Kristoffersen
The Past and Future of Genetic Modification

A number of scientists hope that GM foods can be part of the solution to feeding the world, as the population grows and climate change puts crops under stress. But GM crops also inspire fierce opposition, because many people worry that they may be harmful to the environment or human health.

In the past few years, scientists have begun using CRISPR and other gene-editing technologies to alter the DNA of crops. This week, the top court in the European Union ruled that these crops should be considered GMOs, and thus be subject to the same tight regulations that cover crops produced by older methods. Except for methods that are really old… Continue reading “Friday’s Elk, July 29, 2018” →

What Is a Genetically Modified Crop? A European Ruling Sows Confusion

Posted on by Zimmer

The New York Times, July 27, 2018

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Mushrooms that don’t brown. Wheat that fights off disease. Tomatoes with a longer growing season.

All of these crops are made possible by a gene-editing technology called Crispr-cas9. But now its future has been clouded by the European Union’s top court.

This week, the court ruled that gene-edited crops are genetically modified organisms, and therefore must comply with the tough regulations that apply to plants made with genes from other species.

Continue reading “What Is a Genetically Modified Crop? A European Ruling Sows Confusion” →