The National·Video

'We are at risk of erasing the books of life': Biologists work to chronicle life on earth

According to biologists, species are going extinct 1000 times faster than the historical average. An international project led by Canada is setting out to identify every plant and animal on the planet, to build a library of life.
According to biologists, species are going extinct 1000 times faster than the historical average. An international project led by Canada is setting out to identify every plant and animal on the planet, to build a library of life. 4:15