What happens if we run out of seeds?


Plants are a crucial part of the environment, but in many ways they're frustratingly delicate. In the event of a major environmental or political crisis, they can't exactly hop on a plane to get away from the trouble, so we've got to take care of them. Governments around the world have started to realize that there could be a potentially devastating loss of biodiversity (not to mention nourishing crops) if certain species of plants fell victim to some sort of extinction event.

To avoid this sort of dire situation, many governments have created seed bank facilities that store seeds as a safeguard against any potential loss. Botanists collect the seeds, dry them, and preserve them in a freezer. Many properly stored seeds are viable for decades or even centuries; in 2005 researchers grew a Judean date palm from a 2,000-year-old seed found in the tomb of the biblical king Herod the Great. The concept of preserving biodiversity in seed banks has really caught on; there are around 1400 of them worldwide.

Preserving the Preserves

All of this preservation may sound great, but what if the seed banks themselves are destroyed? After all, if some environmental or nuclear event wipes out a country's plants, it could well take the seed banks with it. It's not an altogether unreasonable threat: in recent years, looters destroyed seed banks in Iraq and Afghanistan, while one in the Philippines fell victim to a typhoon.

Luckily, our Norwegian friends have thought of just these sorts of pitfalls. In 2006, the government of Norway began construction on the Svalbard Global Seed Vault on Spitsbergen, an island in the Arctic Circle. The vault is designed to hold backup copies of seeds stored in seed banks around the world, so if anything happens to an individual bank, the seeds themselves aren't lost forever.

What makes the Global Seed Vault so sure it can safeguard these backups? For starters, it's not just some building perched on a Norwegian island; it's more of a Fort Knox for seeds. The vault is located 400 feet under the permafrost surface of a sandstone mountain, which should enable it to survive both earthquakes and bomb blasts. The vault may be full of envelopes of seeds rather than precious metals, but that doesn't mean security is lax. Supposedly no single person knows all the codes necessary to gain entrance to the vault. The vault has an array of sophisticated cooling equipment to keep the seeds at -0.4 degrees Fahrenheit, but since the surrounding soil is so cold, even if these artificial measures fail the seeds should remain relatively safe. Countries maintain ownership of any seeds they submit; the vault simply places them in safekeeping and allows depositors to control access to their seeds. [Photo courtesy of The Daily Green.]

The Global Seed Vault has been operational since last February, and so far it seems to be serving its purpose. The vault has received inaugural shipments of 100 million seeds from over 100 countries and funding from such luminaries as the Bill & Melinda Gates foundation, so it's getting a good deal of international support.

Even with these large initial shipments, though, the vault is far from full. It's designed to hold 4.5 million samples of 500 seeds apiece. At full capacity, the vault will contain more than two billion seeds in a bomb-proof, climate-controlled environment well above sea level. Who knows what could happen to humans in the coming centuries, but you've got to feel pretty secure that our seeds are safe.

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Thursday’s Best Amazon Deals Include Guitar Kits, Memory-Foam Pillows, and Smartwatches

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3D Map Shows the Milky Way Galaxy in Unprecedented Detail


It's our galactic home, but the Milky Way contains many mysteries scientists are working to unravel. Now, as The Guardian reports, astronomers at the European Space Agency have built a 3D map that provides the most detailed look at our galaxy yet.

The data displayed in the graphic below has been seven years in the making. In 2013, the ESA launched its Gaia observatory from Kourou in French Guiana. Since then, two high-powered telescopes aboard the spacecraft have been sweeping the skies, recording the locations, movements, and changes in brightness of more than a billion stars in the Milky Way and beyond.

Using Gaia's findings, astronomers put together a 3D map that allows scientists to study the galaxy in greater depth than ever before. The data has made it possible to measure the acceleration of the solar system. By comparing the solar system's movement to that of more remote celestial objects, researchers have determined that the solar system is slowly falling toward the center of the galaxy at an acceleration of 7 millimeters per second per year, The Guardian reports. Additionally, the map reveals how matter is distributed throughout the Milky Way. With this information, scientists should be able to get an estimate of the galaxy's mass.

Gaia's observations may also hold clues to the Milky Way's past and future. The data holds remnants of the 10-billion-year-old disc that made up the edge of the star system. By comparing it to the shape of the Milky Way today, astronomers have determined that the disc will continue to expand as new stars are created.

The Gaia observatory was launched with the mission of gathering an updated star census. The previous census was conducted in 1957, and Gaia's new data reaches four times farther and accounts for 100 times more stars.

[h/t The Guardian]