Noise pollution is threatening life in the 'Anthropocene ocean'

A new paper explores how noise from human activities pollutes the oceans, and what we can do to fix it.

Credit: GreenOak via Adobe Stock
  • The new paper notes three major factors that have changed the ocean soundscape: human activity, climate change, and "massive declines in the abundance of sound-producing animals."
  • Noise pollution threatens marine animals because many rely on sound to communicate with each other and sense predators and prey.
  • The paper noted several solutions for decreasing human-caused noise pollution, including floating wind turbines and quieter boat propellers.
Keep reading Show less

2020 ties for hottest year on record, says NASA and NOAA

In a joint briefing at the 101st American Meteorological Society Annual Meeting, NASA and NOAA revealed 2020's scorching climate data.

(Photo: Adobe Stock)
  • 2020 is tied with 2016 for being globally the hottest year on record.
  • The year's hotspot included the Arctic, which is warming at three times the global mean.
  • The United States endured a record-breaking year for billion-dollar natural disasters.
  • Keep reading Show less

    Japanese researchers hope to launch a satellite made of wood in 2023

    The satellite would burn instead of becoming more space debris.

    Credit: Rumman Amin via Unsplash/Peter Jurik via Adobe Stock/Big Think
    • Orbiting around Earth are hundreds of thousands of bits of space debris.
    • Some of this stuff comes plummeting down eventually, but not enough of it.
    • Wood satellites would burn up in the atmosphere without falling on anyone or anything.
    Keep reading Show less

    Microplastics have been found in human placenta

    More evidence that we're drowning in microplastic particles.

    Credit: dottedyeti/Adobe Stock
    • Italian researchers have discovered microplastic particles in human placenta.
    • Out of six collected placentas, four contained colored plastic microparticles.
    • That petrochemical pollutants are present in such a critically important organ is alarming.
    Keep reading Show less

    Skyborne whales: The rise (and fall) of the airship

    Can passenger airships make a triumphantly 'green' comeback?

    R. Humphrey/Topical Press Agency/Getty Images

    Large airships were too sensitive to wind gusts and too sluggish to win against aeroplanes. But today, they have a chance to make a spectacular return.

    Keep reading Show less