Contact / Imprint

Holger Wolpensinger, Dipl.-Ing.

Hainstrasse 74
53121 Bonn

Phone: +49 (0)228- 52 26 44 69



Graphic in the so-called "header" of the web page:
Global warming barcode graphic by climate scientist Ed Hawkins showing that the average annual temperature in Germany has increased dramatically from 1881 to 2017.

Imprint for the homepage of Holger Wolpensinger

According to § 28 BDSG I contradict every commercial use and passing on of my data.

See also the Disclaimer

Holger Wolpensinger, Dipl.-Ing.
Last updated: January 15, 2021

Area of responsibilityThe imprint applies to the Internet presence at the address: as well as all other domains and subdomains listed here:

Demarcation: The web presence is part of the WWW and accordingly linked to external websites that can change at any time, which are therefore not subject to this area of responsibility and to which the following information does not apply. That the links do not violate morals or laws was checked exactly once: before they were included here. Such links, which lead to external web projects, can be recognized by the following: A new browser window opens.

Responsible contact person: Holger Wolpensinger
AddressHainstrasse 74, 53121 Bonn, Germany

Electronic mail address:

Journalistic and editorial responsibilityHolger Wolpensinger, Hainstrasse 74, 53121 Bonn, Germany

Copyright and use
The author specifically grants you the right of use to make a private copy for personal purposes. However, you are not entitled to change and/or pass on the materials or even to publish them yourself. If not explicitly stated otherwise, the copyrights for Texts with: Holger Wolpensinger

The Illustrations are subject to the copyrights of: Holger Wolpensinger

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no liabilityThe contents of this web project have been carefully checked and created to the best of our knowledge. But for the information presented here is no claim to completeness, timeliness, quality and accuracy. No responsibility can be accepted for damage caused by reliance on the contents of this website or its use.

Infringement of property rightsIf you suspect that any of your intellectual property rights have been infringed by this website, please notify us immediately by electronic mail to so that a remedy can be found quickly. Please note: The more time-consuming involvement of a lawyer for the service provider's costly warning does not correspond to its real or presumed will.