NOVA.

NOVA

Arctic Sinkholes

Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas. (60 minutes)

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UPCOMING EPISODES

Sun, 4/20 at 4:00 am on Austin PBS HDTV

Secrets of the Forest

Researchers around the globe gather data on how forests work and try to figure out how these ecosystems can help tackle threats of climate change and species extinction. (60 minutes)

Sun, 4/20 at 5:00 pm on Austin PBS HDTV

Secrets of the Forest

Researchers around the globe gather data on how forests work and try to figure out how these ecosystems can help tackle threats of climate change and species extinction. (60 minutes)

Tue, 4/22 at 6:00 pm on Austin PBS WORLD

Secrets of the Forest

Researchers around the globe gather data on how forests work and try to figure out how these ecosystems can help tackle threats of climate change and species extinction. (60 minutes)

Tue, 4/22 at 11:00 pm on Austin PBS WORLD

Secrets of the Forest

Researchers around the globe gather data on how forests work and try to figure out how these ecosystems can help tackle threats of climate change and species extinction. (60 minutes)

Wed, 4/23 at 7:00 am on Austin PBS WORLD

Secrets of the Forest

Researchers around the globe gather data on how forests work and try to figure out how these ecosystems can help tackle threats of climate change and species extinction. (60 minutes)

Wed, 4/23 at 8:00 pm on Austin PBS HDTV

Arctic Sinkholes

Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas. (60 minutes)

Thu, 4/24 at 1:00 am on Austin PBS HDTV

Arctic Sinkholes

Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas. (60 minutes)