earth

The oceans’ circulation hasn’t been this sluggish in 1,000 years alvin April 14, 2018 - 11:48am
Top environmental problems: Selfishness, greed, and apathy alvin April 2, 2018 - 7:51pm

I saw this quote by Gus Speth on Facebook and Twitter, and wanted to share it here. As Mr. Speth says, the top environmental problems aren’t biodiversity loss, ecosystem collapse, and climate change, they’re selfishness, greed, and apathy (mostly the first two, in my opinion).

Is there a ticking time bomb under the Arctic? alvin January 25, 2018 - 10:41am

With the Earth’s atmosphere getting warmer, NPR has an article, Is there a ticking time bomb under the Arctic? (The short story is that there’s twice as much carbon in the thawing permafrost as their is in the Earth’s atmosphere.)

The Milky Way galaxy sails through the Universe

The Milky Way galaxy sails through the Universe.
The Earth rotates, and revolves around its Sun.
The Sun shines in Earth’s blue sky.
A puffed-up bird tries to pull frozen seed
from the bird feeder while the cat watches,
and I watch.

Just breathe.

A story about a black-hole merger alvin December 15, 2017 - 3:02pm

“About 1.1 billion years ago, two black holes coalesced. They had danced around each other for billions of years, losing energy and swinging closer, until they could no longer resist each other's embrace. Spiraling in, they merged, and released a quaking shout of gravitational waves that echoed across the cosmos.”

Phil Plait on syfy.com has a nice story about a black-hole merger.

If an alien in a galaxy 65 million light years away ...

“If an alien in a galaxy 65 million light years away is looking at us through a telescope right now, then they are looking at dinosaurs.”