Monsoons are weather patterns that bring thunderstorms and heavy rains to hot, dry areas when warm, moist ocean air moves inland. They’re challenging to forecast, especially in a changing climate.
A long-expected federal drought declaration underlines how serious the Colorado River water shortage has become for Western states.
The court upheld two Arizona laws that limit when, where and how people can vote.The ruling further guts the Voting Rights Act at a time when many US states are passing more restrictive voting rules.
Without enough water, trees can develop embolisms, similar to blockages in human blood vessels, and they’re more likely to die from drought or fires.
In Brnovich v. DNC, the court will decide whether two Arizona rules unfairly hurt poor, minority and rural voters. The ruling could determine the fate of many states’ restrictive new voting laws.
The US has one of the highest groundwater use rates in the world. When wells run dry, households may opt to conserve water, find new sources or sell and move.
The Supreme Court recently dealt defeat to Florida in its 20-year legal battle with Georgia over river water. Other interstate water contests loom, but there are no sure winners in these lawsuits.
The U.S. Supreme Court is considering whether a ban on the third-party collection of mail-in ballots is legal. The practice is allowed in 26 states.
The decision to go south for the winter during the ongoing pandemic is a complex one, informed by factors such as availability of recreational opportunities and cost of living.
What the polls and the candidates keep getting wrong about the United States’ largest minority group.
What did this year’s election maps rightly or wrongly tell us?
Were GOP incumbents able to rely on their rural supporters to fend off Democrats’ growing strength in the suburbs?
As Joe Biden and Donald Trump spend the final day of the US 2020 election campaign in key battlegrounds – why a handful of states will be so crucial to the result.
Tribal lands are hot spots for COVID-19 infections and deaths. Racism is one of the reasons.
Border wall construction through Organ Pipe Cactus National Monument in Arizona is encroaching on a site where people from many cultures have interacted for thousands of years.
Western states adopted a 7-year plan in May 2019 to manage low water levels in the Colorado River. Now they need to look farther ahead and accept that there will be less water far into the future.
States are folding the social and economic costs of burning fossil fuels into their electricity policies, giving utilities a financial incentive to reduce greenhouse emissions.
The Mohave rattlesnake is famous for its variable venom – but the reasons behind that variation are not as straightforward as we thought.
If undocumented immigrants choose not to fill out the questionnaire, then the official population of several states would deflate, costing them House seats and federal funding.
The Grand Canyon, which marks 100 years as a national park on Feb. 26, 2019, is known today as an iconic natural wonder. But early European visitors weren’t impressed.