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Johno Whitaker: Monitoring landscape change using satellite imagery

Johno Whitaker: Monitoring landscape change using satellite imagery

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We often hear that trees are being felled at an alarming rate, but how can we measure that rate of loss? One tool is remote sensing, using images taken by satellites to see changes in vegetation cover over time. So this week we look at how satellites and computers enable us to monitor losses and also the progress in reforestation projects.

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