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Businesses write to US authorities to tighten up gun control. Also, it’s the time for youngsters to take control of the climate change debate – we look at thousands of students across the world who will take part in the Global Climate Strike. Diamonds are a girl’s best friend - but do they have to be natural or are synthetic diamonds from a laboratory good enough? Plus, the ÃÛÑ¿´«Ã½â€™s Elizabeth Hotson looks at the lucrative industry of drag performance. We discuss all this with Rhonda Vonshay Sharpe, President of Women's Institute for Science, Equity and Race in Virginia, and Simon Littlewood President of AC Growth Delivered in Singapore.

(Image: An assault rifle gun. Credit: Photo illustration by Joe Raedle/Getty Images)