Ed. note: This is a guest post from Andrew Hill, Senior Scientist at Vizzuality, a small company specializing in data, GIS, and the Web. As an organization that is deeply concerned with biodiversity and conservation, the Garden is invested in using technology as a scientific tool, and I feel EcoHackNYC is an event worth sharing with the rest of the New York-area scientific community. If you’re a scientist or researcher, please consider joining this event. — Ann

This weekend, for the second time in under a year, we are throwing an event to bring together scientists, developers, designers, and others to work collaboratively on environmental projects that matter. We call this event EcoHackNYC. It is a free (un)conference where a small group of people present projects, problems, or data they think need to be developed, and then larger groups of enthusiasts and experts work tirelessly to develop solutions (also check out last year’s event here). For us, this is a special event.

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We have a really great video for you today about the ongoing efforts to keep the Bronx River clean and healthy.

The Bronx River–which runs through a dramatic gorge in the Garden–is New York City’s only freshwater river (the Hudson is a tidal estuary as far north as Troy, and the East River is a tidal strait). The river’s transformation from a dangerously polluted waterway in the mid-20th century to the healthy, clean home of New York City’s first beaver in 300 years is an ecological success story, with new chapters written daily.

So sit back and enjoy this trip down the Bronx River in a flotilla of canoes manned by volunteers from the Bronx River Alliance and a team of Garden horticulture interns.

The 50-acre, old growth  Native Forest is the heart of the Garden. It is one of the reasons Nathaniel Lord Britton settled on this 250-acre plot in the Bronx as the place to build his dream Botanical Garden, it is home to at least one tree that was alive at the time of the signing of the Declaration of Independence, it is home to some of the Garden’s most fascinating residents, it is a place where scientists can study everything from global warming to genetics, and it is a very fine place to go for a stroll. The Forest is a vital part of not just the New York Botanical Garden, but also of New York City, and the world.

For these reasons, and for so many more, we are delighted that the United Nations has declared 2011 “The International Year of Forests.” The UN says that the year is a “celebration of the vital role that forests play in people’s lives … amid growing recognition of the role that forests managed in a sustainable manner play in everything from mitigating climate change to providing wood, medicines and livelihoods for people around the world.”

We’ll be joining in on recognizing the International Year of Forests with a series of events throughout 2011 (but we’re not ready to announce them just yet). In the meantime, here are some other forest facts from the United Nations:

See the facts below.

The story of José and Justin Beaver is a tale of two tails.

In case you’re unfamiliar with the furry duo, perhaps we should offer an introduction. You see, José Beaver is no ordinary beaver. José is, in fact, the first confirmed beaver living within New York City limits in the more than 200 years since his furry forebears were hunted and trapped into local extinction for their luxurious pelts. Beavers were once so important to New York City they are featured on the city’s seal, and frequently act as adornment on buildings around town (and in place names, too).

So, you can see why such a fuss was made when José’s very existence in New York City was confirmed. José is a living link to history. And it only got better when, in October, the existence of José’s pal was confirmed. In a nod to popular culture, he was dubbed Justin Beaver (though, it remains possible that Justin may one day be deemed a Justine–beavers are notoriously hard to sex).

Head below the jump for more on why José and Justin are more than just cute, furry face.