Global News's video: Global National: Feb 24 2021 Hiccups in Canada s COVID-19 vaccination rollout

In tonight’s top story: Virus variants are adding urgency to Canada's COVID-19 immunization rollout, and many Canadians are eager to get the shot. Abigail Bimman reports on what caused Alberta's vaccine booking website to crash and the patchwork of inoculation plans causing confusion in Ontario. The COVID-19 vaccines from Pfizer-BioNTech and Moderna require two doses. However, new research suggests survivors of the illness only require one dose. Crystal Goomansingh explains why France is considering adopting this strategy. Plus, U.S. President Joe Biden has now publicly denounced China's detention of Canadians Michael Kovrig and Michael Spavor. Could Biden's words possibly help secure their freedom? David Akin reports. The U.S. is focusing on climate change again, now that President Joe Biden is in the White House. He and Prime Minister Justin Trudeau have promised to work together to tackle the issue. Jackson Proskow looks at how this pledge could affect Canada. And when Jay Sharrers became the NHL's first Black linesman and on-ice official in 1990, his pioneering achievement gained little attention. Now he's reflecting on his ground-breaking role in hockey and the racism he faced on and off the ice. Ross Lord reports. For more info, please go to http://www.globalnews.ca Subscribe to Global News Channel HERE: http://bit.ly/20fcXDc Like Global News on Facebook HERE: http://bit.ly/255GMJQ Follow Global News on Twitter HERE: http://bit.ly/1Toz8mt Follow Global News on Instagram HERE: https://bit.ly/2QZaZIB