<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjQtMDQvM2E3ZWM4ZTQtOTJkMS00MTNkLWI4Y2YtYWRlNzRkMGZkZDVjLmpwZw==.jpg"></p><p>PayPal’s Blockchain Research Group wants to designate “green miners” and reward them accordingly with additional Bitcoin.</p>