Pubblicato il 23/09/2012Read time: 1 min

Columbia University, the University of Maryland, and the Smithsonian Institution are working on visual recognition software to help identify species from photographs. Leafsnap is the first in a series of electronic field guides being developed to demonstrate this new technology.

[video:http://www.youtube.com/watch?v=nX23TuwP0tI]

This free mobile app helps identify tree species from photographs of their leaves. Leafsnap currently includes the trees of the Northeast and will soon grow to cover the trees of the entire continental United States.

The realization of Leafsnap was possible thanks to the collaboration between Peter Belhumeur (Columbia University), David Jacobs (University of Maryland), and John Kress (Smithsonian Institution).

[video:http://www.youtube.com/watch?v=KCpR4JTEy4c]

The high quality photographs on the website leafsnap.com and in the app were made by the the not-for-profit nature photography group Finding Species.

[video:http://www.youtube.com/watch?v=k02C7p7mQ_c]

Previews of the app:

leafsnap

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COP28: It's Up to the Oil Tycoon to Say Goodbye to Fossils

di Luca Carra

Pubblicato il 14/12/2023

Source: UNFCCC.

Environment

It had to be an oil tycoon to say goodbye to fossils, like the smoker extinguishing his last cigarette and the alcoholic giving up the Negroni. And so it was: for the first time at a United Nations climate change Conference of the Parties, we declare in black and white our desire to abandon coal, gas, and oil. COP28 was held in Dubai, one of the countries most dependent on fossil fuels, and was coordinated by the extremely capable Sultan al-Jaber, president of the largest oil company, ADNOC.

Name that leaf

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