Environment

Environment

Feds outline 'necessary steps' for Colorado River agreement by 2026

Local

Project underway to extinguish underground coal mine fire in Boulder County

Denver7 Investigates

State chemist manipulated data, impacting thousands of water samples, docs say

Commerce City

Lawsuit alleges Suncor contract worker died from hydrogen sulfide exposure

Environment

Colorado wolves: Latest prep ahead of next release and the petition to stop it

Greeley

Greeley PD officer kills mountain lion that made its way onto school grounds

Boulder

Boulder Falls closed due to rockfall that 'damaged key trail infrastructure'

Environment

100+ pronghorn killed on eastern CO roads after snowstorm, CPW says. Here’s why.

Environment

CU Museum of Natural History needs help making its bee collection digital

Environment

Air monitoring study finds 'elevated radioactivity' near Commerce City refinery

Eastern Plains

For 1st time at SE Colorado ranch, reintroduced black-footed ferrets have bred

Denver

Some homes in Colorado not built to withstand today's climate

Environment

CPW names counties it is considering for this winter's wolf reintroduction

Environment

DOI to restrict drilling, renewables in the US West to help struggling bird

Environment

Necropsy reveals likely cause of death of gray wolf in Grand County

World

Prince William, in biodegradable sneakers, attends Earthshot environment awards

Politics

Prop 127: Colorado voters projected to reject ban on hunting mountain lions

Environment

Rocky Mountain Elk Foundation allocates $3.7M for 33 projects in Colorado

Environment

Mount Fujistill without iconic snowcap in November for first time in 130 years

Environment

Prince William puts climate in the focus of his visit to South Africa

Environment

Colorado gray wolf activity observed south of I-70 for first time since December

Denver7 Weather

No trick! Halloween temperatures soar above normal in Northeast

Mountains

Keystone, Arapahoe Basin ski areas to open Saturday

The Follow Up

Patagonian mara spotted at Lakewood park in July is likely dead, officials say

National

Poachers are exploiting demand for eagle feathers — sacred for Native Americans

Denver

Composting in CO: Where you can drop off your leaves in the Denver metro area

Environment

No Halloween prank: Fraser River will turn green Monday for groundwater study

Business

Climate change is impacting Colorado businesses, so now they're adjusting

Environment

Colorado agencies offer trainings on how to keep wolves away from livestock

Environment

The Collegiate Peak Wilderness near Buena Vista just got 19 more acres of land

The Follow Up

After a major low in 2023 for bighorn sheep health in CO, how are the herds now?

Environment

2,700 dead and dying trees to be removed at Chatfield State Park

Environment

Colorado wildlife officials stop search for stray gray wolf pup in Grand County

Environment

3 men collectively fined more than $48,000 for hunting, wildlife violations

National

Alaska’s Fat Bear Contest winner finishes ahead of the bear that killed her cub

Environment

CPW believes food conditioning to blame for brazen bears in Lake City attack

Mountains

Leaf peeping reality: Trash, traffic and increased patrols on Guanella Pass

National

Fate of Nibi the beaver lands in court as rescuers try to stop release

Environment

Thousands of shipping containers have been lost at sea. What happens?

Environment

Spider lovers scurry to La Junta in search of mating tarantulas and community

Environment

Operations are now underway to capture 1 more pup from Copper Creek wolf pack

Environment

Colorado ranching groups file petition to delay more wolf reintroductions

Lakewood

Lakewood confirms first case of invasive tree-killing beetle infestation

Denver7 Weather

Denver's second hottest summer, La Niña winter outlook: Climate conversation

Wildfire

As many forests fail to recover from wildfires, replanting efforts face big odds

Denver7 Investigates

Colorado's "orphaned" well backlog keeps growing, increasing costs, challenges

Environment

Study finds multiple pollution sources in Denver's Elyria-Swansea, Commerce City

Environment

Elk rams SUV in wild CO video: A reminder about elk safety during the rut

The Follow Up

CO-based FarmBox Foods partners with tech company to distribute container farms

Environment

CPW confirms 2 more wolf kills in Grand County, after Copper Creek pack removal

State

Air Force Academy's Beekeeping Club managing hives with more than 60,000 bees

Denver7 Investigates

Why hundreds of old oil wells could become Colorado's cleanup responsibility

Environment

Colorado secures a new source location for second round of wolf reintroductions

Commerce City

Magellan withdraws plan to expand gasoline storage facility in Commerce City

Environment

A third gray wolf reintroduced into Colorado last December has died, CPW says

State

Plan to extract gold from mining waste splits Leadville

Environment

Colorado wolf pack captured for relocation; 1 found in poor condition dies

Mountains

Shadow Mountain Bike Park goes before Jeffco Planning and Zoning

Commerce City

Neighbors continue to push back against Commerce City gasoline plant expansion

Commerce City

Commerce City neighborhood fighting gasoline storage facility's expansion plans

Digital Originals

How Colorado quickly became a nationwide leader in wildlife crossings

Boulder

City warns of potentially harmful algae bloom in Boulder Reservoir

Boulder

Base of the Gross Reservoir Dam to increase another 180 feet this year

National

Boy attacked by a mountain lion while at a California state park with family

Golden

Antidepressants & cocaine: Researchers share what's also flowing in Clear Creek

Environment

Buckley Space Force Base joins effort to preserve monarch butterfly habitat

Environment

Newborn rattlesnakes at a Colorado 'mega den' are making their live debut

Environment

Ranchers, wildlife advocates weigh in on CPW's decision to relocate wolf pack

Colorado Springs Area

50 gallons of diesel spill into Shooks Run Creek in Colorado Springs after crash

Environment

Colorado wolf pack will be captured, relocated after depredations, CPW says

Environment

Barr Lake construction should wrap up before return of nesting birds

Environment

US national parks are receiving record-high gift of $100M

Environment

WATCH: 3 wolf pups from Colorado's Copper Creek Pack captured on camera

Environment

Colorado takes steps to reduce greenhouse gas from garbage

Environment

CPW relocates bear that wandered through Lone Tree to Park Meadows mall

Environment

Collapse of iconic arch in UT has some wondering if other famous arches at risk

State

AZ, NV and Mexico will lose same amount of Colorado River water next year

Boulder

Dog leash restrictions enacted Thursday on some Boulder trails

Environment

As CO River states await water cuts, they struggle to find agreement longer-term

Wildfire

Rain reduces intensity of Bucktail Fire over the weekend into Monday

Environment

Greeley parent calls for better air monitoring at school near oil wells

Politics

Why advocates hope voters approve a mountain lion hunting ban in November

Aurora

Colorado commission approves sprawling oil and gas plan near Aurora

National Politics

Colorado awarded $25M to help clean up orphaned oil and gas wells

U.S./World

Great Barrier Reef waters were hottest in 400 years over the past decade

Environment

Congress might create a fund to address increased sea turtles strandings

Fort Collins

Construction of the new Bay to Bay Trail at Horsetooth Reservoir is underway

Brighton

Construction project will last through the fall at Barr Lake State Park

Environment

Environment groups file lawsuit against Suncor Energy in Commerce City

Fort Collins

A deal struck in Northern Colorado will shut down, clean up polluting oil wells

Aurora

Will Colorado approve fracking plan proposed near Aurora communities, reservoir?

Environment

Dead fish are stinking up Sloan’s Lake in Denver. Here’s why.

Environment

Five mountain lions captured on security camera video at Larimer County home

Discover Colorado

Bald eagle, mountain goats and marmot gather for ‘once in a lifetime’ photos

Science and Tech

Rare orchid finding highlights scientific research at the Denver Botanic Gardens

U.S./World

Fast-moving wildfire in the Canadian Rockies ravages the town of Jasper

Environment

Colorado gets $125 million to help improve the state’s air quality

Denver7 Weather

High ozone levels, wildfire smoke will continue to impact Colorado this week

Environment

A wolf was seen on a Vail Pass camera near I-70. Here’s what it means.

Environment

Grasshoppers are here, blister beetles could follow in Colorado

Louisville

Louisville unveils first fleet of fully electric trash and recycling trucks

Environment

Scientists take to the skies to figure out Front Range's ozone problem

Environment

Food forest and gardens in west Denver combat "heat island effect"

Environment

CPW, Denver Zoo Conservation Alliance release endangered tadpoles into the wild

Science and Tech

Stegosaurus fossil fetches nearly $45M, setting record for dinosaur auctions

Environment

Colorado farmers struggle as infestation of grasshoppers destroys crops

State

Grasshopper invasion in Colorado: Ways to rid them from your home garden

Environment

New Denver City Council committee focusing on South Platte River corridor

National

Court overturns conviction of man accused of violating Forest Service rules

Mountains

Watch: Photographer captures goat 'dancing' on Subaru atop Mount Blue Sky

Environment

CO mountain lion confirmed to have 1st case of ‘staggering disease’ in N America

Environment

Webcam monitors hundreds of rattlesnakes at Colorado 'mega den'

Environment

Toxic blue-green algae closes two more Denver metro lakes

Science and Tech

Nearly complete stegosaurus fossil from Colorado will be auctioned in New York

Highlands Ranch

Wildcat Regional Park neighbors protest potential plan to build sports fields

Fort Collins

Anticipating growth and climate change, Fort Collins looks to expand reservoir

Environment

Deputies remove 'uninvited' black bear from Colorado Renaissance Festival

Environment

Treatment plant issue resolved for Fort Collins-Loveland Water District

Environment

Commerce City refinery violated air quality regulations, EPA and CDPHE allege

Boulder

Boulder County hires landscape architecture firm to put nature into landscaping

Environment

Colorado invests more in communities finding solutions to pollution

Environment

Pollinator advocates praise Colorado law limiting sale of certain pesticides

Lakewood

Strange non-native animal identified after sightings at Lakewood park

Environment

Colorado's geothermal potential will soon be tested in a small town

National Politics

Supreme Court overturns Chevron decision, weakening regulations on environment

National

Water-rich Gila River tribe flexes its political muscles in a drying West

National

Native American ceremony will celebrate white buffalo calf birth in Yellowstone

Denver7 Weather

Wind-driven wildfire spreads outside Oregon community and prompts evacuations

Environment

Water-rich Gila River tribe near Phoenix flexes political muscles in drying West

National

Florida Gov. DeSantis signs bill prohibiting intentional release of balloons

On Two Wheels

Bike to Work Day 2024 is Wednesday: Where to ride, get free food and win prizes

Science and Tech

Colorado parks expand accessibility to those who are blind or low vision

Environment

Colorado's extreme weather makes gardening a challenge. These tips should help

Commerce City

Challenges grow for a Colorado recycler helping the disenfranchised

Denver7 Sports

Will the Seine River be safe to swim in for the Paris Olympics?

National

Converting cow manure to fuel is growing climate solution, but there are risks

Environment

Town of Windsor's buoys fighting harmful algae blooms

National

Here's why the inside of your Amazon package might soon look a little different

Environment

Wolf pup sighting: CPW confirms 1st wolf reproduction since reintroduction

Wildfire

Interlaken Fire 95% contained, US Forest Service announces Friday

Local

Elbert man dies after pontoon boat goes over reservoir spillway in Garfield Co.

Environment

Arapahoe County takes ownership of 45 miles of High Line Canal

Positive News

Baby moose trapped in lake saved by Alaska man and police as worried mom watches

Environment

Iberian lynx back from the brink of extinction, thanks to conservation efforts

National

East Palestine train derailment spread pollutants to 16 states, research shows

Environment

Climate activists spray England's ancient Stonehenge monument with orange paint

Environment

What you didn't know about sunscreen that you probably should

National

Reported birth of rare white buffalo calf in Yellowstone park fulfills prophecy

Environment

CPW confirms wolf den in Colorado, but has not yet seen pups

Mountains

Two moose attacks reported less than two days apart in Winter Park

Local

Colorado's wolf conflict coordinator and ranchers work to find common ground

Boulder

Boulder Creek closed to tubing beginning Wednesday

Wildfire

Crew to begin mitigation of second underground mine fire near Boulder County

Environment

Generation Wild calling on families to help keep CO “Bee-utiful” this summer

State

Hank the Tank's bear cubs released into the wild after rehab in California

Northglenn

Denver-area church works with state to help clean up Colorado parks and water

National

How a fishing net pits economy against ecology in the struggle to save the ocean

Mountains

CPW investigating 'unprecedented' third cow elk attack in Estes Park

Local

Colorado sees 'alarming' number of early-season deaths on rivers, lakes

Environment

Suncor faces citizen lawsuit over air pollution violations

Denver7 Weather

Forecasts say it's going to be a hot summer. Here's how to stay safe in the heat

Local

CPW wants to 'assist' Nuggets star Nikola Jokić by sending him a life jacket

Local

Body recovered from Skaguay Reservoir amid search for missing fisherman

Mountains

4-year-old boy attacked by cow elk at Estes Park playground

National

83-year-old woman gored by bison at Yellowstone National Park

Consumer

Xcel customers with smart meters to pay more for electricity starting Monday

Mountains

CPW: 8-year-old girl attacked by cow elk in Estes Park

Environment

Reformulated gas switch in Front Range counties could mean higher gas prices

Denver7 Traffic

RTD ends free rides to contain air pollution; free rides for youth continue

Environment

‘Harmless’ Miller moths return to Colorado: How to get your home ready

Environment

Calf killed by wolf in Jackson County on Saturday, CPW confirms

Boulder

Boulder Animal Protection officers rescue owl that was struck by car

National

A corpse flower is blooming for first time after 8 years. Here’s how to watch

Environment

Native Americans give unanimous approval to proposal securing CO River water

Environment

Colorado nonprofit calls for changes to EPA air monitoring policies

Environment

Navajo Nation approves proposed settlement to secure Colorado River water

National

Norfolk Southern will pay modest $15M in settlement over Ohio derailment

Environment

Cherry Creek Trail to flood Wednesday as USACE flushes out sediment from dam

State

Pueblo receives $1 million in grant funding to clean up contaminated sites

Local

Public invited to learn about expansion plan for Sweitzer Lake State Park

Boulder

Boulder launches pilot program hoping to make electric vehicles more accessible

Environment

Black Hills Energy, Nature’s Educators partner to protect birds of prey

U.S./World

Climbing limits are being set on Mount Fuji to fight crowds and littering

Politics

Polis signs wolverine reintroduction bill into law. Here's what you need to know

Boulder

Improvements coming to Boulder's Mount Sanitas area after city receives grant

Politics

Polis signs bill allowing CPW to study and conserve invertebrates, rare plants

Environment

Middle school students planting trees in Black Forest burn scar

Environment

Colorado wolf found dead in April likely killed by mountain lion, officials say

Environment

'Pay as you throw': Denver program gets first year report card Tuesday

Environment

CO kids living near airports have slightly elevated levels of lead in blood

Mountains

Projects in State Forest State Park will close 2 trails, Lake Agnes parking lot

Environment

Colorado environmentalists, oil and gas giants reach on deal for compromise laws

National

Scores of starving and sick pelicans are found along the California coast

Environment

EPA offers grants to swap heavy-duty vehicles for zero-emission versions

Wildfire

Colorado's trail app COTREX adds new feature detailing wildfire alerts

Environment

Larimer County commissioners approve final piece of Thornton pipeline project

Global heat streak continues as April breaks record temperatures

Environment

$4.5 million Hanging Lake project aims to preserve trail for the next 100 years

National

South Texas is facing a water shortage, and farmers say Mexico is to blame

Environment

An early glance at the renewed effort to reintroduce wolverines to Colorado

Environment

Biden pledges $3B more to rid US water of lead. But for Flint, it's not that simple

Florida bill awaiting signature would remove mention of 'climate change' from many state laws

National

Biden administration announces water heater energy standards

National Politics

US House votes to remove wolves from endangered list in 48 states

Environment

Middle Park stockgrowers group to receive funding for non-lethal wolf deterrents

On Two Wheels

Denver e-bike rebate vouchers claimed in under 3 minutes on Tuesday

Boulder

Boulder trail will close for bridge construction of new North Sky Trail

National

Pair of giant pandas set to travel from China to San Diego Zoo

Environment

Wildlife officials confirm fourth wolf kill at single property in Grand County

Environment

When is the best time to plant a tree in Colorado?

Environment

Some urge boycott of Wyoming as rural angst over wolves clashes

State

PikeView Quarry begins final step of reclamation, planting 31,000 trees

National

Grizzly bears to be reintroduced into North Cascades decades after disappearing

Environment

Tough new EPA rules would force coal-fired power plants to capture emissions

Positive News

Over 100 pilot whales beached on western Australian coast have been rescued

Environment

CPW: Reintroduced wolf linked to depredation incidents is likely breeding

Environment

CPW docs track livestock killed by wolves, show they have moved east of divide

Environment

Gray wolf released by CPW in December 2023 found dead in Larimer County

Environment

Clear Creek turned orange on Tuesday, officials said it is 'not a health issue'

Entertainment

Climate change in Catan? The new modern twist on a classic board game

Environment

Colorado pauses rulemaking to reduce 'cumulative impacts' from oil, gas

Environment

Lawmakers greenlight statewide recycling program funded by packaging producers

State

Avalanche mitigation with WWII Howitzers being phased out in Colorado

Environment

Dead wolf found in Elbert County, US Fish and Wildlife Service confirms

Scripps News

Biden marks Earth Day with $7 billion in federal solar power grants

Erie

Erie neighborhood fears health risks as cleanup of oil well leak continues

Environment

Palisade High School's Endangered Fish Hatchery to release 1,000th fish

Environment

4 yearling cattle killed by wolves at property in Grand County, CPW reports

Scripps News

Heat-related emergency room visits surged in 2023, CDC says

Environment

Two Black-footed ferret clones born, U.S. Fish and Wildlife Service says

Denver

Elephant at the Denver Zoo moving to Houston

Greenwood Village

Greenwood Village begins electric scooter pilot program Monday

Boulder

Boulder plans to 'heal the land, heal the people' at old fort, farm

Local

Boulder County terminates CEMEX's right to operate cement plant near Lyons

Golden

On Kilimanjaro, CO women embark on expedition with powerful underlying purpose

Wildfire

Goats return to Bear Creek Park as four-legged fire mitigators

Environment

New EPA rule: Chemical plants must reduce toxic emissions likely to cause cancer

National

Norfolk Southern agrees to pay $600M in OH train derailment settlement

Environment

Colorado's second wolf depredation incident confirmed in Jackson County

Science and Tech

Denver Auto Show returns with focus on electric vehicles

Food

Denver brewery highlighting food waste by brewing beer with leftover bread

Environment

CPW confirms first report of wolf depredation on livestock since reintroduction

Environment

Sterling Ranch plans to add 8-acre park with inclusive playground

Environment

Could fracking in Aurora release toxic chemicals from nearby Superfund site?

Denver

Group presses Denver leaders on former Park Hill Golf Course decision

Wildfire

$7M in new grants will support Colorado forest health, fire mitigation projects

State

Broadmoor's Seven Falls reopens for the 2024 season with a change

Lakewood

Lakewood residents petition to protect parks by removing development 'loophole'

Denver

Street sweeping season begins Tuesday, Denver. Here’s what you need to know.

Women's History Month

How the tenacious 'Mother of the Colorado Trail' built her dream into a reality

National

Biden administration restores threatened species protections dropped by Trump

Environment

Colorado trail projects get biggest funding boost to date from lottery revenue

Environment

GPS collars on 2 Colorado gray wolves are not functioning properly, CPW says

Denver

Denver offering grants to nonprofits, small businesses for 'green mobility'

Environment

'Little brown bats' infected with white-nose syndrome discovered in Boulder Co.

Environment

Greeley parent worried over emissions leak at oil site near her son's school

National

Bird flu is decimating seal colonies. Scientists don't know how to stop it

Denver

Can greener grass, cleaner buildings, and more art curb crime?

Environment

Collard Ranch: CPW acquires new property to protect as state wildlife area

Local

CPW updates on wolf reproduction, conflict minimization, community outreach

Lakewood

New investment of nearly $66 million in improving roads, trails, water quality

Local

CAIC records about 1K avalanches in February, including 23 that caught people

Environment

Colorado to restrict Suncor’s discharge of “forever chemicals” into Sand Creek

National

States in Colorado River basin pitch new ways to absorb shortages

Local

Extra-long closures due to mud keep some Jeffco parks closed to protect trails

National

Homes near St. Louis County creek are being tested for radioactive contamination

Environment

State lawmakers introduce bill to reintroduce wolverines to Colorado

Environment

Denver's most polluted neighborhood just bought its own community green space

Environment

Lawsuit claims 'massive fraud' by oil companies that pushed off cleanup costs

Local

Two new apps aim to reduce food waste in the Denver metro

Local

USFS tribal liaisons bridging gap between government, Indigenous communities

Local

CU Boulder's NSIDC: Antarctic sea ice's minimum ties for second-lowest on record

Environment

Colorado updates 2021 plan to reduce emissions, improve air quality

Environment

Electric school buses finally make headway, but hurdles still stand

Politics

Colorado lawmakers introduce new set of air quality bills

Environment

People in north Denver, Commerce City breathe in dirtier air: CU Boulder study

Local

CPW begins hosting public meetings on East Slope mountain lion management

State

Colorado Parks and Wildlife implementing changes for big game hunting licenses

Environment

To keep whales safe, Coast Guard launches boat alert system in Seattle

Olympics

Hundreds are set to descend on Tahiti for Olympic surfing

Local

Collar data indicates some wolves have moved into eastern Moffat County

National

Huge landslide on coastal bluff leaves California mansion on the edge of a cliff

Local

Avalanche mitigation on Ajax Peak has become a beloved spectacle in Telluride

Environment

New rules for lawn and garden equipment get approval

Scripps News

$50K reward offered for information on gray wolves killed in Oregon

Environment

CPW euthanized mountain lion Monday believed to have attacked goats and a dog

National

Biden sets tighter standards for deadly soot pollution

Local

EB, WB U.S. Route 40 closes Monday-Thursday between Genesee and Lookout Mountain

State

Smoke may be visible from prescribed burn planned for parts of Pikes Peak

State

CPW saves two bears and an owl over the last 3 days

Environment

US won't restore protections for wolves in Rockies, proposes national plan

Environment

Jane Fonda's climate activism brings her to Denver's most polluted neighborhood

Environment

Seasonal wildlife closures go into effect Thursday for some Jeffco open spaces

U.S./World

See the moment climate activists throw soup at the 'Mona Lisa' in Paris

Digital Originals

RMNP, Rocky Mountain Conservancy working to preserve historic structures

Digital Originals

RMNP officials strive to balance park protection, accessibility

Local

Long road ahead: How Trail Ridge Road came to be in Rocky Mountain National Park

State

New demolition timeline announced for Return to Nature Funeral Home in Penrose

Local

CPW shares new tool to illustrate where gray wolves are roaming in Colorado

Environment

Colorado awarded $8.3M grant to maintain 363 EV charger ports across the state