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David Petley

David Petley

Environmental science 45%

Engineering 26%

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Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley

Reposted by David Petley