Ocean temperatures hit record high as rate of heating accelerates:
The heat in the world's oceans reached a new record level in 2019, showing "irrefutable and accelerating" heating of the planet.
The world's oceans are the clearest measure of the climate emergency because they absorb more than 90% of the heat trapped by the greenhouse gases emitted by fossil fuel burning, forest destruction and other human activities.
The new analysis shows the past five years are the top five warmest years recorded in the ocean and the past 10 years are also the top 10 years on record. The amount of heat being added to the oceans is equivalent to every person on the planet running 100 microwave ovens all day and all night.
[...]"We found that 2019 was not only the warmest year on record, it displayed the largest single-year increase of the entire decade, a sobering reminder that human-caused heating of our planet continues unabated," said Prof Michael Mann, at Penn State University, US, and another team member.
Journal Reference:
Cheng, L., Abraham, J., Zhu, J. et al. Ocean Temperatures Hit Record High as Rate of Heating Accelerates Adv. Atmos. Sci. (2020) 37: 137. https://doi.org/10.1007/s00376-020-9283-7
(Score: 0) by Anonymous Coward on Wednesday January 15 2020, @03:45PM
The L1 point is on top of a "gravitational hill". You just put the sail slightly on the sunward side so that the photonic thrust matches and balances the downward drift. Yes, you are still going to need station-keeping thrusters, but the better your navigation the more you can balance things out and reduce their use.
Or if you use gyros to tilt it, you could eliminate the thrusters entirely. Reflect the light at 170 degrees instead of 180 and you have a small thrust that can take you wherever you want. Niven said it best in the integral trees: East takes you Out, Out takes you West, West takes you In, In takes you East. North and South bring you back.