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New program aims to help Southern Arizona businesses go green

By David Wichner

The Green Business Leaders Program, launched by the newly formed Southern Arizona Green Business Alliance, will certify and promote businesses that adopt cost-saving sustainability practices in the categories of energy, transportation, water, waste, food, environmental justice and community engagement.


‘Cool pavement’ experiments help urban planners find ways to ease rising temperatures

By Erin Stone Photo by Ken Fagan

Most people try to avoid the midday heat, but Middel and Kelly Turner, an urban planning researcher from UCLA, were gathering data on how so-called “cool pavement” might influence the way pedestrians experience heat in their neighborhoods.


During A Global Pandemic, Environmental Inequality Lingers In Arizona’s Climate Crisis

By Irene Franco Rubio Photo by Irene Franco Rubio

On average, Arizona summer temperatures exceed 100° F, with a constant increase in high daily degrees accumulating as the days go on, leading to poor health outcomes amongst the public. Environmental heat illnesses and heat-related hospital visits have only increased in the past five years, according to the Arizona Department of Health Services.


Supercharged by climate change, ‘megadrought’ points to drier future in the West

By Ian James Photo by Ian James

Cores extracted from thousands of trees enabled the researchers to reconstruct soil moisture and examine the West’s hydrological history, including long droughts that appear as sets of narrow growth rings running through the wood.


Now more than ever, Arizona needs leadership on clean air

By Miriam Robles

Particulate pollution is any sort of particulate matter that can be suspended in the air, and ozone and negatively contributes to the air quality. It can come from activities ranging from burning fossil fuels to charcoal grilling. Particulate pollution has been linked to negative health effects, and even short-term exposure to this pollutant can lead to cardiovascular issues, strokes, and asthma.


The Impacts of Climate Change and the Trump Administration’s Anti-Environmental Agenda in Arizona

Photo by Laura Segall

Arizona currently experiences 50 days of dangerous heat per year, the second-highest in the nation. However, the state is projected to see 80 such days per year by 2050. This endangers the lives of the nearly 200,000 Arizona residents who are especially vulnerable to extreme heat.


Petitions delivered to Arizona corporation commission to increase renewable energy standards

By Greg Hahne and Lauren Gilger

After receiving thousands of petitions calling for higher renewable and clean energy standards, state utility regulators are moving forward with a draft rule that could — if adopted — require 100% clean energy by 2050. It’s not exactly what advocates wanted — groups like the Sierra Club and Vote Solar were hoping to reach the 100 percent mark by 2045 — but it’s a significant step.


Activists cite rising heat deaths, pollution, fires in asking Phoenix to declare climate emergency

By Madison Staten Photo by Madison Staten

Meet Claire Nelson, one of several activists who gathered Monday in front of City Hall to call on city officials to declare a climate emergency. She is also 17.


Study: ‘exceptional’ 2018 drought made worse by climate change

By Melissa Sevigny

In 2018 the Four Corners region suffered from an “exceptional” drought—the highest rating on the U.S. Drought Monitor’s scale. Water sources dried up and crops died, costing the U.S. economy 3 billion dollars. Scientists are now able to pinpoint how much of that drought was the result of climate change.


Survey: 71% Of Arizona Voters Say Climate Change Is A Serious Problem

By Greg Hahne and Lauren Gilger

About 71% of Arizona voters think climate change is a serious problem. That’s according to the Colorado College State of the Rockies Project, a survey to find how important climate and environmental issues are to voters in eight western states.