You cant use violence with baby. Just give me back my stroller, please. This is the cbs weekend news. Ninan good evening. Im reena ninan. This is our western edition. Its been 47 years since the first earth day. Today, it was observed around the world with a focus on science. Rallies and marches were held in more than 600 cities from new york, chicago, and washington, to london, berlin, and sydney, australia. The officially titled march for science was not billed as a political event, but many who marched said they were concerned about threatened cuts to research programs, especially those aimed at fighting Climate Change. Our dr. Jon lapook is at the massive march for science on the national mall. Reporter there was plenty of h20 on this wet, dreary day in the nations capital. But the rain did not seem to dampen the spirit of the crowd. Clinical psychologist tim truemper from salisbury, north carolina. What specifically makes you worried . Climate change is my bigges concern. We cant