Whether you’re just starting to explore or already are immersed in green initiatives, no doubt there's plenty to learn at Down:2:Earth this weekend. This sustainable living event starts tonight at the Hynes Convention Center with the opportunity to sample local green restaurants. Saturday and Sunday programming will include green topics for grownups (e.g., fashion, personal care products, appliances, lawn care) and activities for kids (e.g., conservation activities, face painting, stories). Click here for ticket info; kids 12 and under admitted free.