US-Mexico border fence that separates Tijuana, Mexico, from San Diego, Calif.
AP Photo/Rodrigo Abd
A scholar documented the risks a migrant faced after deportation, including his becoming involved in smuggling people across the border.
Warning sign at Kerr-McGee uranium mill site near Grants, N.M., December 20, 2007.
AP photo/Susan Montoya Bryan
The Trump administration's push for 'energy dominance' could spur a new wave of domestic uranium production. A scholar describes the damage done in past uranium booms and the visible scars that remain.
U.S. President Donald Trump points to Prime Minister Justin Trudeau as he welcomes him to the White House in Washington, D.C. in October 2017.
THE CANADIAN PRESS/Sean Kilpatrick
Canada's experience shows that selecting immigrants based on economic merit is not a silver bullet; finding the "right" immigrants is the only the first step.
Trump has made pushing protectionism since the campaign.
AP Photo/Chris Carlson
The idea that the US is historically a free trading country is a myth. Here's why that's a good thing.
Donald Trump doesn't have one foreign policy – he has several, and they all clash.
Cars sit in flood water from Boston Harbor on Long Wharf during a coastal storm on Jan. 4, 2018.
AP Photo/Michael Dwyer
They don't all support the same strategies for coping with it, but US mayors increasingly see climate change as a pressing urban challenge.
Trump with Supreme Court Justice Anthony M. Kennedy.
EPA/Jim Lo Scalzo
Donald Trump is far from the first president to politicise the judiciary, but the way he's going about it is uniquely dangerous.
The first food stamps program, created amid the Great Depression, lasted four years.
Franklin D. Roosevelt Presidential Library and Museum
SNAP and its precursors have weathered plenty of efforts to shrink the safety net. Its decades of bipartisan support make it likely to survive this one.
Texas farmer Taylor Wilcox received USDA funding to flood his fallow rice fields, creating habitat for black-necked stilts and other birds.
The Agriculture Department provides nearly $6 billion annually for land, water and wildlife conservation on farms. President Trump's 2019 budget drastically reduces funds for these programs.
Shale gas drilling site, in Lycoming County, Pennsylvania.
Nicholas A. Tonelli
Natural gas is widely viewed as a clean fuel, but methane, its main component, is a powerful greenhouse gas. Two experts propose a plan for detecting and cutting methane leaks across North America.
A naturalization ceremony in Los Angeles.
AP Photo/Damian Dovarganes
As Congress takes up the issue of immigration, we turned to our global network of scholars to get their perspective on how so-called merit systems work.
The new plan is supposed to boost the construction of new roads, bridges and other public works projects.
AP Photo/Seth Perlman
The long-awaited $1.5 trillion plan fails to address some major obstacles to private investment.
Senate Minority Leader Chuck Schumer and Senate Majority Leader Mitch McConnell.
AP Photo/J. Scott Applewhite
Congress may have averted a shutdown, but don't get too excited, warns a Harvard budget expert. The deal isn't sustainable long term.
The White House favors public-private partnerships for widening congested roads and getting other pricey projects done.
AP Photo/Charles Dharapak
The $1.5 trillion plan he's proposing would do the most for ventures that don't really need the government's help and ignores some major obstacles to private investment.
Some worry Mick Mulvaney is putting banks before consumers as head of the CFPB.
Mick Mulvaney has only been in charge of the Consumer Financial Protection Bureau for two months, but he's already made many decisions that will leave consumers worse off.
House Intelligence Committee Chairman Rep. Devin Nunes.
AP Photo/J. Scott Applewhite
An expert on secrecy in government explains the downsides and limits of transparency.
North Korean women’s ice hockey players.
North and South Korea explained in five questions and answers.
Kelp and sardines in the Channel Islands National Marine Sanctuary.
No new oil drilling has been approved since 1984 off the California coast, where a major spill in 1969 helped launch the environmental movement. Sixty-nine percent of Californians oppose offshore drilling today.
Customers lining up to legally buy recreational marijuana in West Hollywood, Calif.
AP Photo/Richard Vogel
The attorney general's memo portended an end to a hands-off approach to this enforcement conundrum. It could backfire.
Canadian Foreign Affairs Minister Chrystia Freeland with U.S. Trade Representative Robert Lighthizer, right, and Mexico’s Secretary of Economy Ildefonso Guajardo Villarrea, deliver statements to the media during the sixth round of negotiations for a new North American Free Trade Agreement in Montreal in January 2018.
THE CANADIAN PRESS/Graham Hughes
Donald Trump has described NAFTA as the worst trade deal ever signed by the United States. As NAFTA talks continue, here's what Canada and Mexico can do if the unthinkable happens.