Startup Weekend is a global network of leaders and entrepreneurs on a mission to inspire, educate and empower individuals, teams and communities. Come share ideas, form teams and launch startups. Location: http://www.uoguelph.ca/campus/map/library/ McLaughlin Library, Science Commons (third floor)

Staff in the English language program at U of G welcome international students to the English language certificate program and graduate preparation diploma program. Orientation begins at 10 a.m. from Sept. 2 to 4. Classes begin Sept. 8. Time: 10 a.m. Location: Johnston Hall, OpenEd, Room 160

About 4,000 first-year students will move into residence and begin their university experience  Move-in takes place across campus and spans the entire day.

The Arboretum is hosting its annual plant sale, featuring a wide variety of trees, shrubs and perennials. All plants are grown and cared for by Arboretum Auxiliary members in the Arboretum's nursery and greenhouse. All sale proceeds help with the ongoing maintenance and development of the Arboretum.

The College of Arts, the College of Biological Science and the Eden Mills Writers' Festival present a talk by Naomi Klein, titled "This Changes Everything: Capitalism vs. the Climate." General admission is $10, or $5 for students with ID. Advance tickets are available at The Bookshelf and EMWFtix.ca.

Prof. Barry Smit, Department of Geography, presents "Climate Change is an Unnatural Disaster: Politics and Power, Livelihood and Lives." This event is sponsored by Initiatives in Global Justice. A light lunch will be served. Location: MacKinnon Building, Room 317

New-York based global music ensemble Banda Magda brings their vibrant songs and stories to the University of Guelph. South American rhythm creates the pulse of this energizing group of friends who sing in five different languages in a mix of colour and sound. Admission is free but donations are gratefully appreciated. Everyone is welcome. Location:

Landscape architecture (LA) graduates and their families are invited to a weekend celebration of 50 years of landscape architecture at the University of Guelph.