Environment

Local

State of the snowpack: Explaining runoff predictions for the summer

Environment

Judge orders Denver Water to halt expansion of Gross Reservoir

National

Livestock, pet deaths blamed on wolves raise alarms in rural New Mexico

Politics

Gov. Polis signs bill to consider nuclear energy a clean energy source in CO

Mountains

Nederland residents concerned about Caribou-Cross Mine operational expansion

Environment

At least 1 of Colorado's wolves explored a new county in the past 30 days

Mountains

As mountain glaciers melt, risk of catastrophic flash floods rises for millions

Environment

Poor air quality, bad odors disproportionately impact communities: CU Boulder

Politics

Polis signs bill protecting info of Coloradans who submit wildlife damage claims

Local

Colorado wolf killed by Wildlife Services in Wyoming following sheep kills

Environment

New round of Colorado grants opens to help reduce issues between people, bears

Environment

Colorado's plans for EVs under the current presidential administration

Westminster

Butterfly Pavilion celebrates 30th anniversary supporting invertebrates

Wildfire

These are the wildfire-related bills CO lawmakers have introduced this session

Wildfire

Study: Wildfires are moving faster, forests are less likely to fully recover

The Follow Up

Lakewood repeals, replaces citizen ordinance meant to protect open spaces

Hiking

Reservations available soon to visit Hanging Lake in Glenwood Canyon

Commerce City

Suncor refinery spilled excess cyanide into Sand Creek last month

World

With Trump and independence in minds, Greenlanders vote in elections

World

Majority of the world's population breathes dirty air, report says

World

Guatemala's Volcano of Fire erupts and forces evacuations

Environment

New research finds climate change could impact Colorado's allergy season

Commerce City

Commerce City neighbors skeptical of Suncor flare project to improve air quality

National

Lava fountain height soars in latest episode of Hawaii volcano eruption

The Follow Up

Jefferson Co. residents pack hearing to voice concerns for proposed development

Environment

Jefferson Co. group opposes development on site of former mining research labs

Environment

CPW Commission approves 2 ranchers' claims after 2024 wolf depredations

Environment

Trump's pledge to 'drill, baby, drill' receives mixed reaction in Colorado

Denver

Be a Smart Ash: Denver program will plant trees in front of homes for free

Boulder

Videos of his nature T-shirts went viral, but Jim Morris' roots go much deeper

Environment

DIA pilot program aims to divert waste from landfills

Environment

CPW recommends approval of two high-value wolf depredation claims

Local

Black bear conflicts, sightings in Colorado increased nearly 15% last year

Environment

Workers in climate change and clean energy jobs make new push to unionize in CO

Local

Ranchers express concerns as lone gray wolf enters Teller County

Local

Uncollared gray wolf in north Jackson County kills cow

Denver

Denver Reuse Business Directory lists places to repair, rent, or buy used items

Education

Colorado nonprofit teaches St. Mary's Academy students how to reduce food waste

Local

9 range riders accept offers to work on ranches in northwest Colorado

Fort Collins

Fort Collins clothing store is sewing new life into vintage fashion

Environment

CSU Spur hosts student visit aimed at building climate workforce

Politics

Colorado bill aimed at removing paper bag fees is killed in committee

Environment

CDPHE map helps communities understand environmental factors' impact on health

Fort Collins

Fort Collins to consider water-wise requirements for new commercial developments

Windsor

Town of Windsor set to purchase 300 acres of open space to preserve

Denver7 | Weather

Are these brutal cold snaps common? Lisa Hidalgo's climate conversation with CPR

Environment

A wolf 'is exploring' southern Colorado, CPW says with latest wolf movement map

Environment

Coyote rescued from freezing temps, wind chill, snow after caught in fence

Environment

Colorado will soon regulate five 'priority' air toxics

Denver7 | Weather

The Follow Up: Checking in on Denver's heat pump rebates during Arctic blast

Environment

Colorado wolf reintroduction continues: CPW releases 15 new wolves

Denver

Denver will acquire former Park Hill Golf Course and turn it into a park

Front Range

How to get a free radon test for your home this January

Wildfire

How Denver's water system stands up to wildfires

Denver7 Investigates

CDPHE water testing lab could shut down after second chemist placed on leave

Environment

Colorado program offers free sustainability assistance to local businesses

National

Los Angeles County medical examiner's office: Wildfire death toll rises to 16

Environment

Colorado begins operations to catch wolves in Canada for later release in state

Environment

New habitat study reveals biggest challenges for Colorado's Canada lynx

Environment

CPW seeks public input for Castlewood Canyon State Park management plan

National

How you can help as wildfires cause staggering loss in Southern California

Environment

Scientists drill 2 miles down to pull 1.2M-year-old ice core from Antarctic

Environment

Environmentalists call for stricter regulations before State of the State

State

Colorado ranchers' petition to pause wolf releases denied by CPW Commission

Denver

Denver company pioneers carbon fiber recycling to combat environmental impact

Local

Bull elk rescued after getting entangled in rope near Lake City ice walls

The Follow Up

Colorado's investment in equitable outdoor access may soon get a boost

Denver7 Traffic

A Custer County highway has reopened after Sunday's rockslide

Environment

USFWS investigating illegal wolf kill in CO after necropsy shows it was shot

Environment

Colorado marks one year since single-use plastic shopping bag ban

Environment

City of Denver plans to strategically expand tree canopy

Environment

LPEA to use grant to protect eagles from electrocution on high-risk power poles

Digital Originals

Colorful Colorado: The Beauty of Our State

Denver

Inside the African Penguin breeding program at Denver's zoo

Holidays

Don’t throw your Xmas tree away: ‘Treecycling’ options across the Denver metro

Boulder

CU Boulder Study reveals pollutants in smoke-affected homes linger for weeks

Local

CPW says demands in petition to pause wolf reintroduction have been met

Colorado Springs Area

CPW tracks down coyote that attacked 4-year-old girl on Thanksgiving

Denver7 360 | In-Depth News

Struggles and triumphs amid Colorado's first wolf reintroduction — 1 year later

Environment

Good Samaritans could clean up Colorado's abandoned mines under this law

National

About SCOTUS arguments over environmental regulation of Utah oil railway plan

State

Colorado Range Rider program seeks applicants to help keep wolves from livestock

Environment

7 states’ CO River negotiators, all at same conference, didn’t meet together

State

Colorado now ranks No. 1 in the nation for market share of new electric vehicles

Denver7 Traffic

Project to build new wildlife crossing in southwest Colorado is now complete

Denver

Denver children participate in cooking competition with focus on environment

World

Hong Kong launches panda sculpture tour as city hopes bear craze boosts tourism

World

Scientists gather for 'extraordinary' New Zealand study of world's rarest whale

Business

Colorado's new program helps food truck owners go electric

Colorado Springs Area

CPW hunting coyote that attacked 4-year-old in Colorado Springs on Thanksgiving

Environment

Canada lynx proposed for new habitat protections in US southern Rockies

Environment

Study finds Arapahoe County water supply is sufficient until 2050

Environment

Environmental groups sue Colorado over 'pay to play' for air polluters

Environment

Suggestions to manage Colorado River could mean water cuts for state of Colorado

World

Volcano on Iceland's Reykjanes Peninsula erupts for the 7th time in a year

Local

Land acquisition connects Denver Mountain Parks and Jeffco Open Space land

Environment

CPW releases five rehabilitated bear cubs outside of Pagosa Springs

Environment

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

Boulder

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

Denver7 | 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