This week PBS KIDS and the National Recreation and Park Association (NRPA) announced the annual Explore the Outdoors campaign and partnership, which encourages families to celebrate nature and the outdoors this spring!  Starting April 7, PBS KIDS kicks off Earth Month with themed on-air programming and online and mobile content. NRPA members across the country and local PBS member stations are hosting events throughout the month with PBS KIDS Explore the Outdoors activities and materials.  PBS KIDS Explore the Outdoors will include eco-themed programming weeks from WILD KRATTS and ARTHUR, as well as the premiere of “The CYBERCHASE Movie” and the launch of the new web-original PLUM…