Login Icon 



Photo courtesy of CALL Digital Photography

Monthly, 7:30 – 9:00 PM Free for members, $5 charge at the door for non-members. Guests are welcome. No registration required.
Where: Varsity Acres Presbyterian Church, 4612 Varsity Dr. NW

Come for an evening of discovery and discussion in an informal and intimate setting! Each month we will have an interactive presentation from a different presenter.

We are looking for more CALL scientists and environmentalists –CALL members and others– to come forward to stimulate and inspire us with accounts of research pertinent in today’s world! 

Coordinators: Joe Boivin or Tom Jack



Tuesday, October 2  7:30 - 9:00 PM Cancelled due to snow warning

Dilbit. Crude. Refined.

Pipelines are very much in the news and the word “dilbit” is brought up as a special concern. Is this true? What is dilbit? We have been given many descriptions of this material and warned of its deleterious effect on our infrastructure and our planet. The talk will explain what dilbit is and how it resembles and differs from crude oil. Why is dilbit important enough to build expensive pipelines and set off vicious political battles?

Speaker: Joe Boivin

Joe Boivin is retired from the oil industry after 45 years of work in the chemical and corrosion aspects of oil and gas production and transmission. He has previously presented a talk to CALL on pipelines. He is the co-cordinator of the Science and Environment lecture series.

Tuesday, November 6  7:30 - 9:00 PM

Cloud Seeding: Who is doing what, when, why and how?

Hail damage is a significant concern for those living in and around Calgary. Active cloud seeding is being carried out on a routine basis to minimize this threat. This talk will give an overview of the history of hail suppression, describe current activities and assess the impact of the current program using Alberta case studies. Anyone who owns a vehicle, boat, house, business establishment or any other form of physical property in this part of Alberta will find this presentation interesting.

Speaker: Terry Krauss

Dr Terry Krauss directs the Alberta Hail Project for the Alberta Severe Weather Management Society. He received graduate degrees at the University of Alberta and the University of Wyoming based on hail storm research, radar analysis of hail storms and controlled cloud seeding experiments. He has worked actively in this area for more than 40 years in Canada and abroad and is the author of numerous scientific and technical publications that cover all aspects of hail suppression and precipitation enhancement.

Past Presentations

*To participate in most programs, you must be a member.  Exceptions are listed as Open to the Public

For technical problems
email our Webteam
For general inquiries email:

To search this site, enter keyword in the window below then press the enter key

Powered by Wild Apricot Membership Software