This Map Shows All the Trees in New York City

Tim Wallace/Descartes Labs
Tim Wallace/Descartes Labs

Trees may not be the first thing that comes to mind when you picture big cities, but they're an essential part of many urban landscapes. By maintaining a healthy tree population, a city can clean the air, provide shade to buildings, and improve the quality of life of its residents.

To quantify the impact trees have, officials first need to keep track of how many grow within city limits—a task that's harder than it sounds. Even with thousands of volunteers working on the ground, tallying all the trees in a city like New York can take years, according to City Lab, and such surveys often don't account for the trees growing in parks or on private property. Using artificial intelligence, researchers at the geospatial analytics startup Descartes Labs have found a way to map all the trees in major cities without taking to the streets.

To make the New York tree map below, Descartes programmed a machine learning model to identify tree canopies from satellite images. This isn't as easy as pinpointing green spots: The program had to be taught to distinguish trees from other greenery, like grass and shrubs, using artificial intelligence. This sets it apart from other tools used to map vegetation like the Normalized Difference Vegetation Index (NDVI), which only accounts for light wavelengths, not height.

Map of New York City's Trees.
Tim Wallace/Descartes Labs

When applied to New York, the tree-mapping technology provides a different view of the city. Some of the most heavily trafficked areas, like downtown Brooklyn and Times Square, are blank spaces on the map. Not surprisingly, parks like Forest Park in Queens and Central Park in Manhattan have the densest concentrations of trees, but some affluent neighborhoods, like the West Village and the Upper East Side, also have plenty of greenery.

New York's vegetation may be impressive by some city's standard, but it's nothing compared to what it was 400 years ago. Here's what Manhattan looked like in 1609.

[h/t City Lab]

2624-Year-Old Cypress Tree Discovered in North Carolina Swamp

iStock/earleliason
iStock/earleliason

National Love a Tree Day on May 16 is a day to appreciate all the world's trees, but a bald cypress recently identified in North Carolina is especially deserving of recognition. As Live Science reports, scientists date the tree to 2624 years old, making it one the oldest living non-clonal trees on Earth.

For their study, recently published in the journal Environmental Research Communications, a team of researchers studied the rings of trees in North Carolina's Black River swampland to learn more about climate history in the eastern United States. Bald cypresses are known to have impressive lifespans, but after analyzing specimens in the Black River's Three Sisters Swamp, an area that's notable for its long-lived trees, the scientists discovered that cypresses can grow to be even older than previously believed. The 2624-year-old cypress tree they found predates the Great Wall of China and the Roman Empire. Other remarkably old trees, including a 2088-year-old cypress, were also identified in the same grove.

The North Carolina cypresses are old, but there are other types of trees that can grow to be much older. Clonal tress are genetically identical plants that reproduce asexually from a single ancestor. Old Tjikko, a clonal tree in Sweden, has a root system that dates back 9550 years.

Despite all that North Carolina's bald cypress trees have endured, their lives are under threat. The swamp where the 2624-year-old tree stands is located just 6.5 feet above sea level, which means that floods driven by climate change could damage its habitat. And though the grove is in a protected area, industrial runoff and logging that's happening nearby could impact the trees' health. North Carolina is considering establishing a Black River State Park where the trees grow to further protect the ancient natural wonders.

[h/t Live Science]

This Beverage Maker Lets You Enjoy Carbonated Drinks Without Hurting the Environment

Sparkel
Sparkel

Whether you're preparing breakfast before you head off to work or looking for something to wash down lunch, procuring the perfect beverage is vital. If it's a carbonated drink, though, with that comes the carbon dioxide emissions that arise every time you hear that classic "fssst" sound from cracking one open. These emissions are actually quite harmful to the environment.

But thanks to the newly unveiled Spärkel, curating carbonated drinks can be done without using CO2 or any artificial ingredients.

"If you walk into any grocery store, the explosion in the popularity of sparkling drinks is plain to see with more choices and flavors than ever before, but why buy off-the-shelf when it is healthier, cheaper, and more fun to create your own drinks at home?" Darren Hatherell, CEO of Spärkel, said in a press release. "With Spärkel, we created a system that lets people use the freshest ingredients and convenient carbonation process to experiment and unleash their creativity in a way that is kind to their wallet and the environment."

Users can place any kind of ingredients they wish—berries, citrus, cucumbers, etc.—along with their drink of choice—water, tea, cocktails—into the 25 oz. (750 mL) bottle and choose what level, from one to five, of fizz they'd like to have added to their drink. The sealed chamber generates CO2 naturally from a sachet of Spärkel Carbonator powder, which is "made of a special granulation of citric acid and sodium bicarbonate." The CO2 bubbles are cycled through the liquid, and within a couple of minutes, you have a completely personalized sparkling drink.

On top of all that, the beverage maker is suitable for any number of usages from water and juices to cocktails. It also comes in nine different colors—black, white, gray, yellow, orange, red, blue, green, and pink—so it can match up with whatever kitchen palette you have.

To get your hands on the Spärkel, check it out on Indiegogo, where it's available for a pre-sale price of $59.

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