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If the planet keeps on heating, more people will suffer from heat stress

rutgers.edu
  • If the planet warms by 3 degrees Celsius (5.4 Fahrenheit), extreme heat and humidity will affect 1.2 billion people by 2100, according to new study.
  • High heat and humidity stop our bodies from cooling down, causing heat stress—the body temperature rises, and risk of organ damage increases.
  • Heat stress can lead to heat stroke, which can kill or cause disability.
  • The study is based on 40 climate simulations, and analyzing various environmental factors beyond just heat, like humidity, wind speed, sun angle and solar radiation.

Hydrogen bridges the gap between geological and biological processes

natureecoevocommunity.nature.com
  • In a fantastic example of scientific collaboration, three different research teams arrive at the same conclusion - hydrogen is the key to life.
  • All teams attempted to recreate the natural formation of basic life-forming molecules in underwater hydrothermal vents.
  • Using different minerals as catalysts and CO2, researchers found that only after adding Hydrogen did the correct molecules start to form.
  • It is an important finding that shows how geological processes could’ve given start to life, by creating molecules with basic biological processes.

The Western world is consuming less fossil fuels than ever

reuters.com
  • According to official global data, fossil fuel generation dropped in the US, EU and India - three of the top four largest fossil fuel consumers.
  • At the same time, the three countries noted an increase in renewable fuel consumption.
  • These changes are largely fueled by the Paris Agreement, which was implemented to combat climate change and reduce pollution.
  • In the fourth country, China, consumption is on an entirely other scale, and both their fossil consumption and renewables consumption are growing at a breakneck pace.

Moth fuzz is actually an acoustic camouflage against bat echolocation

royalsocietypublishing.org
  • Moth fuzz, the curious powder on moths, turns out to be acoustic protection against bat echolocation.
  • The fuzz is actually comprised of hair-like scales, and they have a layout with structures and patterns almost identical to materials used in sound insulation.
  • It was compared to similar fuzz on butterflies, which didn’t absorb ultrasonic sound energy, whereas moth fuzz absorbed ~68% of this energy
  • Researchers show that it’s a broadband (20-160khz) stealth coating, which camouflages moths from bats, giving them a survival advantage.
  • The scales are considerably better at absorbing sound than human-made absorbers with the same structural parameters.

Scientists are trying to save bees with special bacteria for bee gut microbiome

news.utexas.edu
  • Researchers from the University of Texas have engineered bacteria that protects bees from inside their tiny bee guts.
  • The bacteria helps bees fight off two major causes of colony collapse - Varroa mites and deformed wing virus.
  • It’s the first time ever that scientists have improved bee health by engineering their microbiome.
  • Further research is needed to confirm these claims, but the team believes this could be scaled up for agricultural use, and that negative side-effects are very unlikely.
  • Honey bees contribute $20 billion yearly to US crop production alone, and they are critical to global food production.

Newsletter

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Categories

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  • Psychology Psychology (67) The Desire for Information: Blissful Ignorance or Painful Truth?
  • Cosmos Cosmos (30) Huge explosion, second only to the Big Bang, discovered 390 million light years from Earth
  • History History (16) Three human-like species lived side-by-side in ancient Africa
  • Society Society (69) AI can’t predict how a child’s life will turn out even with a ton of data
  • Medicine Medicine (67) Air pollution linked to dementia and cardiovascular disease
  • Technology Technology (73) First-principles calculations shed light on semiconductor defects
  • Nature Nature (49) If the planet keeps on heating, more people will suffer from heat stress