PROJET AUTOBLOG


Richard Stallman's Political Notes

Site original : Richard Stallman's Political Notes

⇐ retour index

Surveillance satellites

mardi 1 mai 2018 à 02:00

A company proposes to launch satellites to provide continuous real-time surveillance views of the whole surface of the Earth.

How much resolution this will provide is not clear, but it makes me wonder if there is an antisatellite weapon that avoids producing dangerous space debris.

A tweet about Ahed Tamimi

mardi 1 mai 2018 à 02:00

An Israeli member of Parliament tweeted that he wished Ahed Tamimi had been shot rather than jailed. Twitter punished him with a short suspension, but he shows no shame.

UK's 'special forces'

mardi 1 mai 2018 à 02:00

The UK's "special forces" have never been scrutinized by parliament, but that may soon change.

Melting ice

mardi 1 mai 2018 à 02:00

Melting ice in Greenland has triggered a positive feedback, releasing dust that darkens the surface so that it absorbs more light and heats up to melt more ice.

A different positive feedback loop is speeding melting of Antarctic ice.

This leads me to think that that forecast sea-level rise is an underestimate. I am not surprised, since the forecasts are based on known phenomena only, and that makes them conservative.

A mere 10 meters of rise would inundate many cities around the world.

Can we dam the Mediterranean Sea? It would be a megaproject and a great challenge, but might be cheaper than protecting, or losing, the heart of every city on its coasts.

It might be necessary to transfer lots of water and/or salt across the dam, but that would be better than letting the Mediterranean flood so many cites.

Burning wood

mardi 1 mai 2018 à 02:00

The EPA has declared that burning wood is carbon-neutral.

In a stable climate, it would be carbon-neutral if done at a sustainable rate over a long time. However, we can't assume that another tree will actually grow to the same size -- not when logging is used for deforestation. But even if another tree starts to grow, it might not reach maturity. Global heating could dry up the region, or allow pests to migrate which would kill that tree.

I'm richer than you! infinity loop