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  • The 'Megacities' are coming, and they're voracious Thursday, 30 Apr 2015 | 2:09 PM ET
    San Paulo, Brazil.

    The New York metropolitan area gobbles up more energy than any other major city in the world, according to new research.

  • BRUSSELS, April 30- The European Commission on Thursday called for a tougher U.N. The European Union has already introduced its own law to curb climate-harming hydrofluorocarbons, also called "F-gases", used in fridges and air conditioners. The European Union is seeking to lead the push for more ambitious action on curbing greenhouse gases ahead of a conference...

  • In a letter to the U.S. Environmental Protection Agency's Office of Environmental Justice, the coalition, coordinated by the Citizens for Health, Environment& Justice, alleges that Ohio's injection well program disproportionately impacts the state's low-income Appalachian areas and has failed to meet a federal directive assuring those communities...

  • Unmanned Russian spaceship expected to crash Wednesday, 29 Apr 2015 | 4:35 PM ET
    An unpiloted Progress resupply vehicle is shown approaching the International Space Station.

    The Russian vessel Progress 59, which experienced difficulties soon after entering the orbit on Tuesday, will crash into Earth.

  • The cities at greatest risk for a mega-quake Wednesday, 29 Apr 2015 | 10:50 AM ET
    A member of Nepalese police personnel walks amidst the rubble of collapsed buildings, in the aftermath of Saturday's earthquake in Kathmandu, Nepal, April 27, 2015.

    In earthquake-prone cities, growing populations live amidst infrastructures that are unable to withstand the effects of large quakes.

  • New in US weaponry: A bullet that steers itself Wednesday, 29 Apr 2015 | 10:15 AM ET
    DARPA’s self-steering bullet EXACTO (Extreme Accuracy Tasked Ordnance) adjust in flight to hit moving targets.

    The research arm of the Defense Department has created a bullet that can change course in mid-air.

  • UN, Vatican team up for climate change agenda Tuesday, 28 Apr 2015 | 5:30 AM ET

    VATICAN CITY— The United Nations and Vatican joined forces Tuesday to warn about the dire effects of climate change, gathering religious leaders, Nobel laureates and heads of state to present a united front ahead of make-or-break environment talks later this year in Paris. Ban opened a Vatican conference on the environment that is a key part of the Holy See's...

  • Cities struggle with CA's efforts to save water Sunday, 26 Apr 2015 | 3:00 PM ET
    The Beverly Hills lily pond with the city's famous sign is seen during a severe drought in Beverly Hills, California on April 9, 2015.

    Challenges have bedeviled some of California water conservation efforts, and experts expect uneven levels of compliance and success.

  • Coral reef vanishing act threatens coasts Saturday, 25 Apr 2015 | 9:00 AM ET
    St. Martin, an island the Caribbean where as much as 80% of coral have been wiped out.

    Years of overfishing, boating and environmental degradation are causing coral reefs to disappear, and scientists say that's a huge danger around the world.

  • Aerie Pharma plummets   Friday, 24 Apr 2015 | 2:50 PM ET
    Aerie pharma plummets

    CNBC's Meg Tirrell gives a report on Aerie Pharmaceuticals and why biotech investing is tricky.

  • Plain talk about 'Star Talk': Neil deGrasse Tyson

    Neil deGrasse Tyson astrophysicist and "Star Talk" host, discusses his new show about science and space. Also Tyson weighs in on the next scientific frontier.

  • Cigars can be as deadly as cigarettes: FDA Thursday, 23 Apr 2015 | 8:00 PM ET
    A woman lights a hand-rolled cigar.

    Cigars have higher levels of some harmful chemicals, and some smokers may be inhaling more smoke than they think.

  • Another effect of California's drought: Mosquitoes Wednesday, 22 Apr 2015 | 11:43 AM ET
    California prepares itself for mosquito season as the drought persists.

    California may be dry, but water-breeding mosquitoes, and the diseases they carry, still may have another big year in 2015.

  • Bill Nye 'the Science Guy' on tech's gender problem   Wednesday, 22 Apr 2015 | 10:54 AM ET
    Bill Nye 'the Science Guy' on tech's gender problem

    Sylvan Learning CEO Jeffrey Cohen and Bill Nye think a new program teaching children robotics could help solve the gender problem in Silicon Valley, with CNBC's Sara Eisen.

  • Big biotech movers: Juno & Kite   Monday, 20 Apr 2015 | 2:42 PM ET
    Big biotech movers: Juno & Kite

    Shares of Juno Therapeutics and Kite Pharmaceuticals are falling today based on news coming out of a big cancer conference over the weekend, reports CNBC's Meg Tirrell.

  • Painkiller abuse falls but heroin use rises: Study Monday, 20 Apr 2015 | 2:25 PM ET
    Oxycodone is a narcotic pain reliever. OxyContin, Percocet, Percodan, and Tylox are trade name oxycodone products.

    Changes in the prescription drug market may have curbed prescription opioid abuse but may have also fueled a rise in heroin use.

  • How do you get a man to give to charity? Think s-e-x Friday, 17 Apr 2015 | 12:47 PM ET
    man giving money to woman

    Men seem more inclined toward behaving generously if they see other men doing so—especially when a woman is involved.

  • California copper thieves knocking out water pumps Thursday, 16 Apr 2015 | 11:28 AM ET
    Copper water pipes.

    Rural thieves in bone-dry California are sacking water pumps and irrigation lines for copper, putting further pressure on farmers.

  • Curing eye disease, and maybe color blindness   Tuesday, 14 Apr 2015 | 5:43 PM ET
    Curing eye disease, and maybe color blindness

    Avalanche Biotechnologies founder and CEO Thomas Chalberg, discusses treatments for wet macular degeneration, and a potential treatment for color blindness.

  • Composting corpses? A startling next step in burial Tuesday, 14 Apr 2015 | 12:09 PM ET
    Katrina Spade, founder and director of the Seattle-based Urban Death Project,  monitors the temperature of a mound of wood chips that contains a human body at Western Carolina University's human decomposition research facility in Cullowhee, N.C.

    As space becomes a problem for burial in urban areas, the idea of turning corpses into compost is gaining ground. The NYT reports.