Science - USA (2020-09-04)

NEWS

IN BRIEF

1148 News at a glance

IN DEPTH

1151 Can Europe tame the pandemic’s

next wave?

Countries seek new strategies as coronavirus

cases are rising again across the continent

By K. Kupferschmidt

PODCAST

1152 Bill threatens key Brazilian

universities

Proposal to strip São Paulo institutions of

reserve funds draws fierce opposition By I. Amigo

1153 Malaria fighters’ latest chemical

weapon may not last long

Clothianidin-resistant mosquitoes already

seen in Cameroon By M. Makoni

1154 An ecosystem goes topsy-turvy

as a tiny fish takes over

Predator-prey reversal has dramatically

altered the underwater ecosystem along the

Baltic Coast archipelago By E. Pennisi

1155 Cannabis research data reveals

a focus on harms of the drug

Funding for therapies grows slowly, new

analysis finds By C. O’Grady

FEATURES

1156 The carbon vault

Industrial waste can combat climate change by

turning carbon dioxide into stone By R. F. Service

INSIGHTS

PERSPECTIVES

1160 High-precision molecular

measurement

Spectroscopy of hydrogen deuteride ions

provides the proton-to-electron mass ratio

By M. Hori

REPORT p. 1238

1161 Soil age alters the global

silicon cycle

As rocks undergo prolonged chemical

weathering, plants become more important

for supplying bioavailable silicon

By J. Carey

REPORT p. 1245

1163 Dynamics of death by heat

Time at high temperature modulates

fly mortality in nature

By R. B. Huey and M. R. Kearney

REPORT p. 1242

1164 Sexual dimorphism in body clocks

Sexual dimorphism in chronobiology

has implications for the health

of our 24-hour society

By S. T. Anderson and G. A. FitzGerald

1166 Can proteins be truly designed

sans function?

A new unit of local protein structure

can aid in the de novo design of

ligand-binding proteins By A. Peacock

RESEARCH ARTICLE p. 1227

1167 A molecular trap against COVID-

Structure-function studies reveal a new

receptor decoy to block virus entry

By B. J. DeKosky

REPORT p. 1261

BOOKS E T A L.

1169 The Stepford wife gets smart

A pair of digital scholars confront the

troubling implications of feminized

household management technologies

By M. E. Sweeney

1170 Biology’s brave new world

The promise and perils of synthetic

biology take center stage in a fast-paced

new series By D. Greenbaum

LETTERS

1171 Editorial Expression

of Concern

By H. Holden Thorp

1171 The dangers of Arctic
zombie wildfires
ILLUSTRATION: DAVIDE BONAZZI/SALZMANART By M. Irannezhad et al.

SCIENCE sciencemag.org 4 SEPTEMBER 2020 • VOL 369 ISSUE 6508 1143

ON THE COVER

Democracy is a global phenomenon, but so

are the myriad challenges that threaten to

throw it off balance. Violence and repression,

polarization and disinformation, diversity and

inequality—all highlight

the need for social and

behavioral scientists

to understand how

democracy might adapt

and even thrive in the

face of such obstacles.

See page 1174. Illustration:

Davide Bonazzi/salzmanart

SPECIAL SECTION

DEMOCRACY IN THE BALANCE

1192 Democracy’s backsliding in the

international environment S. D. Hyde

VIDEO

1197 False equivalencies:

Online activism from left to right

D. Freelon et al.

SEE ALSO EDITORIAL p. 1147 SCIENCE ADVANCES RESEARCH ARTICLE BY M. BARBER AND

J. B. HOLBEIN 10.1126/SCIADV.ABC

INTRODUCTION

1174 In flux and under threat

POLICY FORUMS

1176 Racial authoritarianism in U.S.

democracy By V. M. Weaver and G. Prowse

1179 Human-centered redistricting

automation in the age of AI

By W. K. T. Cho and B. E. Cain

PERSPECTIVE

1181 Campaigns influence election

outcomes less than you think

By D. W. Nickerson and T. Rogers

REVIEWS

1183 Diversity and prosocial behavior

D. Baldassarri and M. Abascal

1188 Can democracy work for

the poor? R. Pande

PODCAST

CONTENTS

4 SEPTEMBER 2020 • VOLUME 369 • ISSUE 6508

Published by AAAS