Author Archives: tuncali

About tuncali

I began keeping aquariums as early as I was nine years old. Since then, I kept many aquariums and lots of fish, plant and invertebrate species. My favorite fish family is of course cichlids with their fascinating behaviors. My relatively new area of interest is low-tech natural aquariums as almost self-sufficient ecosystems that are I think ideal models for sustainable life.

Ecosystem Mutilation Business

monoculture in agriculture

Maybe you have already heard the term externalities in economics: Externalities are defined as harmful or useful side-effects of economic activities… For example pollution is a harmful side-effect of many industrial production activities. Most economy books explain the harmful externalities … Continue reading

Posted in Sustainable life | Tagged , , , , , , , , | 6 Comments

Why I left the Swiss CFA Society

Good bye CFA

Until October 2012 I was a CFA charter holder and regular member of the Swiss CFA Society. After reading an article about Indonesia (as booming economy!!!) in a CFA magazine I definitely decided to resign from the society and informed … Continue reading

Posted in Miscellaneous | Tagged , , | 1 Comment

Jared Diamond’s Collapse: How Societies Choose to Fail or Succeed

Jared Diamond

Did you know that great Indian civilizations like Maya and Anasazi went down primarily due to environmental disasters like erosion and aridity? Did you know that the Sumerians in Mesopotamia, such a creative and influential society, collapsed due to the … Continue reading

Posted in Sustainable life | Tagged , | Leave a comment

Impressions from my Bolivia journey in 2007, part 1

Hot water lake in Robore, Bolivia

Impressions from my Bolivia journey in January 2007, organized by the retired Swiss biologist Robert Guggenb├╝hl. Our travel group consisted of botanists, nature lovers and some passionate aquarium hobbyists. Passing from places like St Cruz, Robore, Trinidad, Magdalena and Bella … Continue reading

Posted in Natural aquariums, Sustainable life | Tagged , , , | Leave a comment

Take clean-tech one step further: A self-sufficient life style

Self-Sufficient Life And How To Live It from John Seymour

What is cleantech? Cleantech in the narrow sense includes green technologies like: Renewable energy (solar, wind, geothermal, biofuels) Green buildings Energy efficient and low emission transportation Biomaterials like bioplastic Water filtration With cleantech in the narrow sense one still means … Continue reading

Posted in Sustainable life | Tagged , , | 1 Comment