Global National: Aug. 4, 2020 | Huge explosion devastates Beirut as search for answers begins

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On Tuesday's edition of Global National: More than 70 people are dead after a massive explosion in Lebanon’s capital. The explosion in Beirut was so powerful, shockwaves were felt hundreds of kilometres away. Crystal Goomansingh reports on the devastation it left behind.

Canada’s top doctor said Tuesday that restrictions put in place to fight the novel coronavirus could remain in place for years, even with a vaccine. Mike Le Couteur has more on that story.

New clinical guidelines published in the Canadian Medical Association Journal are changing how doctors treat and measure obesity. As Mike Drolet explains, the issue is more complex than counting calories, exercising and the body mass index (BMI).

Thousands of unsolicited envelopes of seeds from China are showing up in mailboxes around the world. But why? Sarah MacDonald reports on the investigation underway, and what you should do if you receive a seedy package.

Canadian researchers have made the first cancer diagnosis in a dinosaur. Heather Yourex-West explains how the discovery was made, and the commonality it reveals between humans and dinosaurs.

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