As record temperatures scorch Canada, you may find yourself walking on the shady side of the street, or ducking under a tree. But in many cities, keeping public spaces sunny has long been a key priority. The Globe and Mail's architecture critic Alex Bozikovic explains how sun and shade wars have broader implications on critical city infrastructure. Then, Saroja Coelho speaks with environmental journalist Sam Bloch about how prizing sun over shade has cast a long shadow on urban design and public health in our warming world.

Guest host Saroja Coelho speaks with New York Times White House correspondent Katie Rogers and McGill University political science associate professor Maria Popova about Donald Trump and Vladimir Putin's meeting in Alaska, The Globe and Mail's architecture critic Alex Bozikovic and environmental journalist Sam Bloch make the case for city shade, aviation expert John Gradek discusses the the Air Canada flight attendant labour dispute, Canadian history professor Alan MacEachern reflects on the evolution of Canada's parks, and Canadian author Vinh Nguyen retraces his family’s journey 50 years after the end of the Vietnam War.

Discover more at https://www.cbc.ca/sunday

If you've ever been told to stop saying "like" so much, or caught yourself cringing when someone else does it... you might want to reconsider. Journalist Megan Reynolds says the much-maligned word is actually a linguistic powerhouse. In the latest edition of Word Processing, our ongoing look at language, Reynolds speaks with Saroja Coelho about the history, gender politics and surprising functionality of "like", as she explores in her book Like: A History of the World’s Most Hated (and Misunderstood) Word.