Paris Climate Agreement: What it is, how it started and what happens now that the US has rejoined
Rejoining the Paris Climate Agreement was one of several moves President Joe Biden made in the first days of his administration to undo actions by former President Donald Trump.
The Arctic of yesterday: Report shows a warmer, less frozen Arctic is well underway
NOAA’s 2020 report card shows the Arctic is clearly transforming to a warmer, less frozen and biologically changed region.
Valley teens working on project to bring sustainable energy to Glendale elementary school
A group of Valley teens are trying to bring renewable energy to underserved communities, as well as allowing students there to learn about sustainability.
Keystone XL oil pipeline construction stops as Biden moves to revoke permit
Construction on the long-disputed Keystone XL oil pipeline has been halted as U.S. President Joe Biden decided to revoke its permit.
Biden signs executive orders on COVID-19, immigration, rejoining Paris climate accord and WHO
In his first hours as president, President Joe Biden signed a series of executive actions that reversed his predecessor’s orders on immigration, climate change and handling of the coronavirus pandemic.
Biden to review Trump's downsizing of national monuments
President Joe Biden says he plans to review the Trump administration’s downsizing of two sprawling national monuments in the American Southwest.
Federal court strikes down Trump rule easing power plant pollution regulations
A federal appeals court has thrown out a rule that made one of the Trump administration’s most momentous climate rollbacks.
Apaches object to Forest Service review of huge copper mine
The U.S. Forest Service released an environmental review that paves the way for the creation of one of the largest copper mines in the United States, against the wishes of a group of Apaches who have been trying for years to stop the project.
Scientists say 1-2% of bugs lost every year due to climate change, agriculture, pesticides
Scientists worry that the world is losing about 1% or 2% of its insects each year.
Apache group sues over land swap for Arizona copper mine
Apache Stronghold argues that the U.S. Forest Service cannot legally transfer land to international mining company Rio Tinto in exchange for several parcels the company owns around Arizona.
COVID-19 linked to biggest drop in US greenhouse gas emissions since WWII, report finds
The COVID-19 pandemic caused greenhouse gas emissions in the United States to drop by 10.3% in 2020, according to preliminary data by the Rhodium Group.
Old Christmas trees being dropped into Saguaro Lake to make fish habitats
The Arizona Game and Fish Department is using old Christmas trees to create structural habitats for fish in Saguaro Lake.
Arizona Game and Fish drops Christmas trees into Saguaro Lake
The Arizona Game and Fish Department is using old Christmas trees to create structural habitats for fish in Saguaro Lake.
Oceana report says Amazon has a ‘plastic problem’, pollutes oceans with 22 million pounds of plastics per year
A new report estimates that Amazon generated enough plastic packaging waste in 2019 to circle the Earth 500 times.
Valley experiencing poor air quality due to fireworks and weather issues
Officials say weather conditions, coupled with the use of fireplace and/or fireworks, resulted in bad air quality in the Valley to start the new year.
Recycle your Christmas tree by turning it into compost in the Valley
You can recycle your Christmas tree by taking it to one of the Phoenix-area recycling sites. The link for the locations can be found on our Seen on TV page.
Maricopa County prohibits wood burning due to soot in air
The Arizona Department of Environmental Quality has extended a high pollution advisory through Saturday in Maricopa County due to elevated levels of soot in the air.
Things to know about recycling items during the holiday season
The holiday season can mean a lot of trash, and officials with one waste management company have some advice for people on how to recycle right in the coming days.
Researchers find microplastics in human placentas for 1st time, calling it 'matter of great concern'
For the first time, researchers have found microplastics in human placentas of four healthy women who had normal pregnancies and births.
Kilauea volcano, earthquake rock Hawaii's Big Island
The eruption began late Sunday within the within Halema’uma’u crater.



















