Waste Connections and the nonprofit Pink Lemonade Project have been trying to turn Clark County pink, one recycling cart and a time, for the last five years.Recently, the two organizations stepped up their efforts, turning one of the Waste Connections recycling trucks into a mobile billboard for the breast cancer organization. Waste Connections now has a pink-painted truck picking up recyclables in portions of Clark County’s urban growth area and east Vancouver.“It’s pretty cool,” said Brittany Pratt, executive director of Pink Lemonade Project. “I’ve seen it out on the road, and it’s pretty eye-catching.”The truck urges residents to “Help us turn Clark County pink” by upgrading their blue recycling cart to a pink cart with a $100 donation to Pink Lemonade Project. And, so far, it seems to be working.Since Jarett Hill started driving the truck in August, he’s noticed dozens more pink recycling carts on his routes. He’s also had people stop him to ask questions about the truck and the pink carts, he said.