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Climate

Cost of fighting warming 'modest,' says UN panel

BERLIN — The cost of keeping global warming in check is “relatively modest,” but only if the world acts quickly to reverse the buildup of heat-trapping gases in the atmosphere, the head of the U.N.’s expert panel on climate change said Sunday.

April 13, 2014 2:46 pmLoading…

Charles Krauthammer: Oppose proclamations from on high and you’re a ‘denier’

Two months ago, a petition bearing more than 110,000 signatures was delivered to The Washington Post demanding a ban on any article questioning global warming. The petition arrived the day before publication of my column, which consisted of precisely that heresy.

April 11, 2014 12:00 amLoading…

The volcano that changed the course of history

This article originally appeared in The Conversation.

April 10, 2014 6:00 pmLoading…

Clive Crook: Why many folks don’t listen to climate scientists

Why aren’t climate scientists winning the argument on climate policy? It sure isn’t for lack of effort.

April 04, 2014 12:00 amLoading…
Ring's Reflections: Five C's are integral to Arizona's history

Ring's Reflections: Five C's are integral to Arizona's history

Do you know Arizona’s traditional five C’s? I’m talking about the most important elements of Arizona’s economy during the state’s development from a U.S. territory through statehood and well into the 20th century.

March 27, 2014 12:00 am Photos

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A dubious achievement for humanity

A dubious achievement for humanity

Earlier this year, scientists at the NOAA Mauna Loa Observatory in Hawaii announced a major threshold in the Earth system had been crossed: the concentration of the greenhouse gas carbon dioxide in Earth’s atmosphere has now passed a level not seen in the last 3 million years.

September 29, 2013 12:00 am Photos

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Oceans absorbing more global heat, UA researcher says

Much of the heat that was supposed to fire up the globe’s air in the past 15 years — but didn’t — has gone into the ocean, a University of Arizona oceanographer said Friday.

September 28, 2013 12:00 amLoading…

Take tour, see a side of desert you may not know

Richard Brusca says he has always emphasized that the Sonoran Desert is much more than the cacti and creosote of the Tucson Basin.

August 11, 2013 12:00 am Related Loading…
Tucson monsoon: Despite rain, drought persists

Tucson monsoon: Despite rain, drought persists

Monsoon's rainy first month brought rain, lightning and cooler temps, but severe-to-extreme drought remains a concern in 94 percent of Arizona.

July 25, 2012 3:00 pmLoading…
Tucson monsoon: Rain chances now at 'above' normal

Tucson monsoon: Rain chances now at 'above' normal

According to an updated three-month forecast from the National Weather Service's Climate Prediction Center, Tucson's chances for rain are looking up.

June 23, 2012 12:00 pm Related Loading…
Tucson monsoon: Saturday's rain totals

Tucson monsoon: Saturday's rain totals

Unfortunately, Saturday's first monsoon rainfall wasn't spread equally around the Tucson metro area, according to preliminary data from the Pima County Regional Flood Control District.

June 17, 2012 8:00 am Photos

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Tucson monsoon: It's officially arrived

Tucson monsoon: It's officially arrived

Today is the official first day of monsoon. Take a look at this short presentation from the National Weather Service, Tucson Weather Forecast Office, which explains what we can expect from the summer rainy season.

June 15, 2012 8:00 am Related Loading…
She's back — La Niña reappears in the Pacific Ocean

She's back — La Niña reappears in the Pacific Ocean

Who can forget this past February's record low evening temperatures and burst water pipes? According to the National Oceanic and Atmospheric Administration, we should prepare for more of the same this winter.

September 08, 2011 3:00 pmLoading…
Drought deepens in Tucson

Drought deepens in Tucson

It is the worst of times. It is ridiculously hot. It is uncomfortably humid. And it's not raining nearly enough to make enduring such nonsense worthwhile.

August 25, 2011 12:00 am Related Loading…
Tucson records 16th hottest July

Tucson records 16th hottest July

July was hot — just as you might have expected. It was the 16th hottest on record; and through seven months, 2011 is already the 19th warmest recorded.

August 01, 2011 7:59 amLoading…
A look at the 'bursts' and 'breaks' of the Arizona monsoon

A look at the 'bursts' and 'breaks' of the Arizona monsoon

As this week's weather pattern in Tucson reveals, monsoon's rains are not constant. Instead, these thunderstorms occur in a pattern of bursts and breaks. This graphic explains how it works.

July 14, 2011 5:58 pmLoading…
Good news, bad news about our monsoon rainfall this far in Tucson

Good news, bad news about our monsoon rainfall this far in Tucson

First, the good news, Tucson.

July 08, 2011 2:14 pmLoading…
Monsoon adds its own noise for Fourth

Monsoon adds its own noise for Fourth

The first citywide monsoon storm of the season added some extra fireworks to Tucson's Independence Day celebrations.

July 05, 2011 12:00 am Photos

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Happy first day of monsoon! Wait, is it really?

Happy first day of monsoon! Wait, is it really?

So, you probably already know monsoon is a season. In the past, this season was ushered in based on the dew-point data: Have three days in a row at average dew point of 54 degrees or higher? Well, then monsoon started on the first of those three days.

June 15, 2011 6:15 pmLoading…

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