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How "overtourism" strains top destinations

Cities and attractions across the globe are experiencing severe overcrowding and other stresses brought on by too many tourists. According to the United Nations' World Tourism Organization, there were around 70 million international tourist arrivals back in 1960. Today, that number has hit more than 1.4 billion. Erin Florio, travel news director for Conde Nast Traveler, joins "CBS This Morning" to discuss the impact of all that tourist traffic.

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Inside the labs crafting slaughter-free meat

The United Nations is urging people to eat less meat, claiming that animal agriculture is a leading cause of greenhouse gases and that eating fewer animals could free up millions of acres of land. Some high-tech laboratories in Tel Aviv are pioneering a new way to make that happen: slaughter-free meat. So-called “clean meat” is created out of cells from farm animal tissues. It's real steak and real chicken, but no animals are involved. Seth Doane reports.

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