https://archive.md/hIOHJ
"Steel is the backbone of the modern economy, essential for building
skyscrapers, wind turbines, planes, trains and automobiles. It’s also
incredibly dirty, responsible for about 7 percent of global carbon emissions.
Experts have long regarded the steel industry as a hard-to-abate sector — a
corner of the economy where phasing out planet-warming emissions is
particularly tough.
Most steel plants emit carbon twice: They heat up coal to create coke, and then
burn the coke in massive blast furnaces to melt iron ore.
Over the past 12 months, however, the outlook for the industry has changed
significantly. Electric arc furnaces, which use scrap metal and electric
current instead of iron ore and coke, are on the rise around the world.
About 43 percent of planned steel plants will use electric arc furnaces, up
from 33 percent just a year ago, according to a recent study by Global Energy
Monitor. (The news site
Carbon Brief has in-depth coverage.)
Though steel manufacturing methods vary, making steel with an electric arc
furnace using scrap metal, as is common, produces about 14 percent as much
carbon dioxide as a traditional blast furnace, according to the report."
Via
Future Crunch:
<
https://futurecrunch.com/good-news-abortion-mexico-vaccine-indonesia-conservation-alaska/>
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
