![]() Mit Klein Flasche March 2025 |
![]() Grand Canyon Hike March 2023 |
![]() Tree in Davis Mountains with Arm Sling, March 2022 |
![]() With Giant White Squill, August 2020 |
![]() Vall del Madriu-Perafita-Claror, June 2019 |
![]() In Banff 2019 |
![]() CIMPA School in Ibadan 2017. Photo: Olanrewaju Johnson |
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![]() Blackcomb Glacier Cave 2016 |
![]() Alpe de Suisi 2015 |
![]() Hawaii Lava 2014 |
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![]() Yosemite 2013 |
![]() Sokoto, Nigeria, 2012 |
![]() Norrviken 2011 |
![]() Lake Mäleren 2011 |
![]() Banff 2010 |
![]() Innsbruck 2009 |
![]() Schweitz im 2008 |
![]() München 2006 |
![]() Banff 2004 |
![]() Talk at U Michigan 2001 |
![]() U Mass 2001 |
![]() Wisconsin 1999 |
![]() MSRI in 1996 |