Environment Colorado More than 60 countries have banned this pesticide -- it's time we join the club.John,The dangers posed by the herbicide known as atrazine have long been studied -- it's been linked to birth defects, cancer and reproductive issues, and can devastate contaminated ecosyste…

Environment America Giant sequoias only live in around 75 groves on Earth. Nearly half can be found in these three forests.John,Giant sequoia trees are among the largest and oldest living organisms on Earth. Some can reach 325 feet tall.1 Others have stood since long before the rise of the R…