1197 Reactivation of Cumbre
Vieja volcano
A long-quiescent volcano’s behavior
requires rethinking about forecasting
and hazards By M.-A. Longpré
PODCAST1199 Directing carboxylic acid
dehydrogenation
A palladium ligand can activate
carbon-hydrogen bonds yet
avoid product olefin reactions
By Y. Iwabuchi
REPORT p. 12811200 Programming a quantum
phase of matter
The ability to measure long-range
entanglement may enable robust quantum
memory By S. D. Bartlett
RESEARCH ARTICLES pp. 1237 & 12421201 Room-temperature mid-infrared
detectors
Two independent groups designed
nanoantennas for detecting mid-infrared
light By R. Gordon
REPORTS pp. 1264 & 12681202 Dissecting the early COVID-
cases in Wuhan
Elucidating the origin of the
pandemic requires understanding
of the Wuhan outbreak
CREDITS: (TOP TO BOTTOM HANNAH AGOSTA; RAISSA MATHURA By M. Worobey
NEWS
IN BRIEF
1176 News at a glanceIN DEPTH
1178 Startling new variant raises
urgent questions
Omicron’s many mutations look troubling but
understanding its danger will take time
By K. Kupferschmidt
1179 Where did ‘weird’ omicron
come from?1180 Poor trials of health steps are worse
than none, scientists say
Others say small COVID-19 studies
accumulate into a clear picture over time
By C. O’Grady
PODCAST1181 China tightens its grip on
Hong Kong universities
As dissent is stifled, a wave of departures
at all levels is “mainlandizing” the higher
education system By D. Normile1182 Deep brain stimulation takes new
aim at depression
Case studies spotlight personalized
approaches to tweaking brain circuits
By K. ServickCONTENTS
3 DECEMBER 2021 • VOLUME 374 • ISSUE 6572^1190
3 DECEMBER 2021 • VOL 374 ISSUE 6572 11711182
INSIGHTS
BOOKS E T A L.
1190 Books for young scientists
and engineersPERSPECTIVES
1196 Short-circuiting respiration
Fumarate siphons electrons to keep
metabolism running
By S. C. Baksh and L. W. S. Finley
REPORT p. 1227FEATURES
1184 Forest fight
Germany invented “scientific” forestry. But a
huge dieback triggered by climate change has
ignited a fierce debate over how the nation
should manage its trees By G. PopkinSCIENCE science.org