A Disturbing Weather Report for the Year 2047
By 2047, plus or minus five years, the coldest years the world experiences will actually be warmer than the hottest years in the past.
If the world does not act with great urgency to mitigate greenhouse emissions, we will need to completely redefine what a hot year is and a cold year is. By 2047, plus or minus five years, the coldest years the world experiences will actually be warmer than the hottest years in the past. This disturbing projection was published in the journal Nature by a team of researchers led by Camilo Mora.
"Unprecedented climates will occur earliest in the tropics and among low-income countries," the authors write, "highlighting the vulnerability of global biodiversity and the limited governmental capacity to respond to the impacts of climate change."
The authors argue, however, that urgent action might delay these changes by several decades, allowing both nature and humans to adapt.
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Here's the science of black holes, from supermassive monsters to ones the size of ping-pong balls.
- There's more than one way to make a black hole, says NASA's Michelle Thaller. They're not always formed from dead stars. For example, there are teeny tiny black holes all around us, the result of high-energy cosmic rays slamming into our atmosphere with enough force to cram matter together so densely that no light can escape.
- CERN is trying to create artificial black holes right now, but don't worry, it's not dangerous. Scientists there are attempting to smash two particles together with such intensity that it creates a black hole that would live for just a millionth of a second.
- Thaller uses a brilliant analogy involving a rubber sheet, a marble, and an elephant to explain why different black holes have varying densities. Watch and learn!
- Bonus fact: If the Earth became a black hole, it would be crushed to the size of a ping-pong ball.
From time-traveling billiard balls to information-destroying black holes, the world's got plenty of puzzles that are hard to wrap your head around.
- While it's one of the best on Earth, the human brain has a lot of trouble accounting for certain problems.
- We've evolved to think of reality in a very specific way, but there are plenty of paradoxes out there to suggest that reality doesn't work quite the way we think it does.
- Considering these paradoxes is a great way to come to grips with how incomplete our understanding of the universe really is.
In a breakthrough for nuclear fusion research, scientists at China's Experimental Advanced Superconducting Tokamak (EAST) reactor have produced temperatures necessary for nuclear fusion on Earth.
- The EAST reactor was able to heat hydrogen to temperatures exceeding 100 million degrees Celsius.
- Nuclear fusion could someday provide the planet with a virtually limitless supply of clean energy.
- Still, scientists have many other obstacles to pass before fusion technology becomes a viable energy source.
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