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July 5, 2022

Energy and Climate Policy
How Does the U.S. Power Grid Work?

Responsible for powering the country and its economy, the U.S. energy grid has come under increasing strain due to climate change, and the threat of cyberattacks looms.  

Power lines are seen in Rancho Cucamonga, California.

July 25, 2022

Infectious Diseases
Why Hasn’t the World Eradicated Polio?

The world is inching closer to eradicating polio, but armed conflicts and opposition to vaccines stand in the way of finally eliminating the disease.

A health worker marks the finger of a child with indelible ink during an anti-polio campaign at an Afghan refugee settlement on the outskirts of Islamabad, Pakistan.

August 3, 2022

Taiwan
Why China-Taiwan Relations Are So Tense

Taiwan has the potential to be a flash point in U.S.-China relations. U.S. House Speaker Nancy Pelosi’s trip to Taipei in 2022 heightened tensions.

A helicopter flies a Taiwanese flag through the air.

July 27, 2022

North Korea
What to Know About Sanctions on North Korea

World powers continue to punish North Korea with economic sanctions, but the pressure has so far failed to push Pyongyang toward denuclearization.

A woman works at a textile mill in Pyongyang, North Korea.

July 19, 2022

Pharmaceuticals and Vaccines
A Guide to Global COVID-19 Vaccine Efforts

The swift development of effective vaccines against COVID-19 was an unprecedented scientific achievement. But production challenges, vaccine nationalism, and new variants have all presented hurdles.

Physician Alister Martin receives one of the first doses of the Pfizer-BioNTech coronavirus disease (COVID-19) vaccine at Massachusetts General Hospital in Boston, Massachusetts, U.S., December 16, 2020.Craig F. Walker

June 10, 2022

United States
U.S. Gun Policy: Global Comparisons

The United States is witnessing another year of record gun violence, raising domestic and international scrutiny of its comparatively loose gun laws and placing pressure on lawmakers to enact meaning…

A gun enthusiast looks at a rifle scope

November 17, 2021

Climate Change
Global Climate Agreements: Successes and Failures

International efforts, such as the Paris Agreement, aim to reduce greenhouse gas emissions. But experts say countries aren’t doing enough to limit dangerous global warming.

Muddy waters nearly submerge lines of cars during a flood in Colorado, United States.

April 13, 2007

Aging, Youth Bulges, and Population
The Effects of ‘Youth Bulge’ on Civil Conflicts

The presence of idle and unemployed young people in the developing world, or so-called “youth bulge,” is emerging as a catalyst for internal violence.

February 9, 2022

Canada
What Is Canada’s Immigration Policy?

With its comparatively open and well-regulated immigration system, Canada has become a top destination for immigrants and refugees.

New Canadians wave the national flag during a citizenship ceremony in Toronto.

May 14, 2009

Immigration and Migration
China’s Internal Migrants

China’s rapid economic development has been fueled in large part by a massive migration of rural workers to cities and industrial zones. Young, poorly educated, and highly mobile, these workers conti…