The Hudson River is one of the great rivers of the world. Not long ago, it was deeply threatened by pollution. Now it is coming back to life, a river where fish and birds can thrive again, a river valued once more by communities along its shores. The unique environmental education program on board the sloop, Clearwater , founded by folksinger Pete Seeger, has taught thousands of children and adults to love the river. With this guidebook, Clearwater...