Final answer:
The Canadian Children's Food and Beverage Advertising Initiative (CAI) exists due to increasing childhood obesity rates. The CAI was established to promote responsible advertising to children and to encourage the food and beverage industry to promote healthier options in their advertising.
Step-by-step explanation:
The Canadian Children's Food and Beverage Advertising Initiative (CAI) exists due to the socio-cultural trend of increasing childhood obesity rates. Childhood obesity is defined as body weight at least 20 percent higher than a healthy weight for a child of that height, and is a distressing trend that can lead to health issues including type 2 diabetes and heart disease. To combat this trend, the CAI was established to promote responsible advertising to children and to encourage the food and beverage industry to promote healthier options in their advertising.