Scientists from research institutions, non-profits, and the private sector made themselves seen and heard on Sunday, September 21, when 310,000 people marched through New York City to demand action on climate change.  This “People's Climate March” was timed to coincide with a special climate summit for world leaders at the United Nations on Tuesday, September 23. 

Next week is Climate Week in New York City. The happenings begin on Sunday with what promises to be a massive march demanding action to curb human-propelled global warming. On Tuesday, the United Nations will hold an all-day climate-focused summit for world leaders.

California businessman Russ George made headlines in 2012 when he, in cooperation with a group from a Native Canadian community, dumped more than 100 tons of iron sulfate into the Pacific, some 200 miles off shore. The iron then triggered a bloom of plankton. He apparently didn't ask anybody's permission, violated two United Nations conventions, and was widely condemned for taking on such a large project, a type of geoengineering, to alter the environment as he saw fit.

Here's a roundup of the week's top drone news, designed to capture the military, commercial, non-profit, and recreational applications of unmanned aircraft.

Dozens of the world's top climate scientists have gathered in Japan this week with representatives from around 100 countries to work on the latest United Nations report about climate change. According to leaked drafts, the report is all but calling the climate situation an emergency: Far from causing future problems for a few species bearing white fur or feathers, hotter temperatures are already changing local conditions for humans, and a lot faster than most climate researchers once believed possible.

Here's a round-up of the week's top drone news, designed to capture the military, commercial, non-profit, and recreational applications of unmanned aircraft.