Make the world a better place (there is no planet B)

On Earth day 2017, a march was organized by scientists, skeptical of the agenda of the Trump administration and critical of Trump administration policies widely viewed as hostile to science. The organizers state that an "American government that ignores science to pursue ideological agendas endangers the world." More than a million people participated worldwide.
The Photo album (of the Montreal March) is on Facebook
See also: Something to celebrate