<br />
INTERNATIONAL EDITION<br />
December 2019<br />
GUIDED<br />
AUGERS<br />
Varied case studies from<br />
around the world<br />
<br />
COMMENT<br />
CHOICE OF METHOD<br />
One of the important things to remember about<br />
science is that it is always refining. While a field<br />
advances, improved data collection and the<br />
interpretation of studies brings the model we base our<br />
understanding on closer to reality.<br />
If you are not intimately familiar with a field, your<br />
awareness of it can slip. Climate change is one such<br />
example.<br />
While it is a fact that carbon emissions contribute to<br />
a greenhouse effect, and that the majority view of the<br />
scientific community has been that human emissions<br />
have been a major cause of this since the 1960s, there<br />
were still legitimate positions held by doubters until<br />
about 2005. It is not long ago, but this period has<br /><a title="Tunnels December 2019 page 1" href="https://secure.viewer.zmags.com/publication/0609e1ac?page=1"> INTERNATIONAL EDITION </a>
<a title="Tunnels December 2019 page 2" href="https://secure.viewer.zmags.com/publication/0609e1ac?page=2"> </a>
<a title="Tunnels December 2019 page 3" href="https://secure.viewer.zmags.com/publication/0609e1ac?page=3"> COMMENT CHOICE OF METHOD One of the import</a>
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<a title="Tunnels December 2019 page 7" href="https://secure.viewer.zmags.com/publication/0609e1ac?page=7"> CONTENTS News 7 News Features 14 In</a>
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<a title="Tunnels December 2019 page 10" href="https://secure.viewer.zmags.com/publication/0609e1ac?page=10"> NEWS / WORLD PROGRESS UPDATE FROM ISAR</a>
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<a title="Tunnels December 2019 page 64" href="https://secure.viewer.zmags.com/publication/0609e1ac?page=64"> BUSINESS DIRECTORY To advertise here call Cli</a>
<a title="Tunnels December 2019 page 65" href="https://secure.viewer.zmags.com/publication/0609e1ac?page=65"> BUSINESS DIRECTORY MONITORING EQUIPMENT </a>
<a title="Tunnels December 2019 page 66" href="https://secure.viewer.zmags.com/publication/0609e1ac?page=66"> BTS CORPORATE MEMBERS To advertise here </a>
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<a title="Tunnels December 2019 page 68" href="https://secure.viewer.zmags.com/publication/0609e1ac?page=68"> EVENTS What's on 2019 Egyptian Tunnelling S</a>
<a title="Tunnels December 2019 page 69" href="https://secure.viewer.zmags.com/publication/0609e1ac?page=69"> EVENTS Bauma China 2020 24-27 Novembe</a>
<a title="Tunnels December 2019 page 70" href="https://secure.viewer.zmags.com/publication/0609e1ac?page=70"> CONTACTS Contact us Editorial Alex Con acher </a>
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