Avoid the heat and surf (the web) inside with this refurbished iPad, now under $250

employing scientific deduction.

}); These extreme Post-it notes will definitely get your point across.thumbnail_url:https:\/\/zmgvideos.

Mashable Light SpeedWant more space and science stories in your inbox?Sign up for Mashables weekly Light Speed newsletter.the tumbling cost of these technologies is helping its adoption.there were dramatic increases in clean energy investment.

its expected that renewable power will only account for 15 percent of the nations total energy consumption by 2020.com\/cms\/2018\/4\/16bb56af-8e31-b8ce\/mp4\/720.

Investment in solar is surging ahead of other renewable sources.

according to a new United Nations report which looked at how countries spent money on new power generation.increasing risks to our health.

which is consistent with other public opinion surveys.stronger storms droughts.

has openly questioned the scientifically solid link between increasing amounts of carbon dioxide in the air and global warming.published by the Trump administration but released with little fanfare and ignored by Pruitt and others.