← Environment / Sustainability

Warning Signs for Environmental Hazards

A collection of warning signs near water and natural areas, highlighting safety protocols around nuclear plants, flooding, and pesticide use.

Warning sign to inform of hazardous pesticide use. Spraying conducted in Ontario´s Muskoka region.

Closed, Contaminated area taking shellfish is prohibited sign, Indian Neck, Wellfleet, Massachusetts.

Detroit, Michigan USA, 28 August 2021, As a heat wave sweeps across Michigan, a sign warns of unsafe water conditions at the Belle Isle Beach in the Detroit River. The beach has been closed due to high levels of E. Coli in the water.

Sign for private woodland with no public right of way, Sutton, Suffolk, England, United Kingdom, Europe

Extreme Fire Danger, fire ban at Lake Pleasant Regional Park Extreme Fire Danger, fire ban at Lake Pleasant Regional Park, Sonoran Desert, Arizona USA Copyright: xZoonar.com/NormxLanex 15782732

$A sticker on a road sign near a natural gas well in the process of hydraulic fracturing or fracking in rural Lycoming County, Williamsport, Pennsylvania, United States, North America$

Warning sign for bear safety at popular provincial park, British Columbia, Canada

A No swimming allowed sign in the East Bayfront area of Toronto.

Electric Fence Bear Warning Sign. Protection of Wildlife Migration Corridor in Banff National Park, Canada

Office of Research and Development - Gulf Breeze GED , Environmental Protection Agency

Chile, Araucania, thermal spa Termas Geometricas, warnings very hot water,

high fire danger roadside warning sign in Nebraska

Sign saying ""plastics, smoking, liquor spitting prohibited"" Indian city park, Lalbagh Botanical Garden, Bangalore, Karnataka, India.

Signs at Baker Co DRC which Opens today.. Photographs Relating to Disasters and Emergency Management Programs, Activities, and Officials

Forest fire danger sign, Caesarea, Israel, Asia

Reclaimed water irrigation sign, do not drink or swim, Florida.

Danger High Voltage sign on a fence

Danger sinking mud sign, Weston-Super-Mare, Somerset, UK. 11/04/2013

Road sign to protect Cassowaries (Casuarius casuarius) The surrounding rainforest shows the damage caused by Cyclone Larry in March 2006, Tam OShanter State Forest, Queensland, Australia, March 2006

Tsunami evacuation area sign, Hamakua Coast, The Big Island, Hawaii, USA

Billboard ban in the RN of the bog Machais Vosges France

Polar Bear Warning Sign On Hudson Bay; Churchill, Manitoba, Canada

Sign protesting Site C dam proposed for the Peace River, along Highway 29 in the Peace Valley, British Columbia, Canada

Signage on a danger trail

Sign Warns of Contaminated Water

Sign for danger to life due to tidal currents or falls on the cliffs on the coast of St. Margarets Bay, English Channel, England, Great Britain

Temporarily drained and closed reservoir sign, in public park, Virginia.

Sign prohibiting fishing for shellfish Canada

Plants around an information board

Pool safety gate with sign emphasizing water safety

A sign warning of and electric fence surrounding a field of sheep "ATTENTION! ELECTRIC FENCE!

South Georgia. Whaling station. Keep out sign. Asbestos hazard.

Snake warning sign, northern Colorado.

American Petroleum Institute Adopt a Highway sign near Shafter. San Joaquin Valley, California, USA

'Restoration Area' sign in forest, restoration through natural regeneration and reforestation with endemic forest tree species, Puerto Princesa Subterranean River N.P., Saint Paul Mountain Range, Palawan Island, Philippines

Evacuation Route sign, Florida, USA

Didymo (Didymosphenia geminata) warning sign, diatom bloom seriously affecting South Island waterways and rivers, Mount Cook National Park, New Zealand

Fish mortality through too warm water

Stockholm, Sweden May 16, 2025 A roadworks signs on the road says in Swedish, Tap for drinking water.

Humorous sign to keep off lawn on bare earth field Funny message to keep off lawn in middle of bare dirt and soil Copyright: xZoonar.com/StevexHeapx 12911364

Danger sign for cliffs,Crooked River Canyon,Central Oregon

PLAYA-DET CARTEL EN VALENCIANO DE PROHIBIDO ACAMPAR. Location: EXTERIOR. OLIVA. Valencia. SPAIN.

Keep Off Grass sign, Chemically treated

Sign warning of contamination in abandoned pioneer gold mine, Nth Queensland, Australia.

A sign that reads Caution - Pesticide Application”

Office of the Administrator - Native Americans in Arizona - image of the Tohono O'odham Nation, Hualapai Tribe, Havasupai Indian Tribe, and the Havasupai Indian Reservation , Environmental Protection Agency

Attention! Danger of slipping due to wet leaves on the roadway

A tsunami evacuation route sign.

Warning of crocodiles and life-threatening jellyfish, danger, advice, sea, coast, Port Douglas, east coast, Queensland, Australia, Oceania

Office of the Administrator - Boston-New Bedford , Environmental Protection Agency

No Dumping sign, AES Power plant, Los Cerritos Channel, Long Beach, California, USA

Enclosures to protect plants Lake Tahoe California USA

Orange danger sign warning of steam eruptions and hot springs

Tsunami hazard zone, warning sign, western coast of Alaska, USA, North America

Extreme Fire Hazard proclaims Smoky the Bear near Lake Hughes California

A nuclear weapon free zone sign

USA, Oregon, Ft. Kalamath. Forest fire danger sign

Zika virus warning warning road sign with storm background

Carbon Dioxide Hazard Area warning sign. Dead trees around Horseshoe Lake. Higher than normal concentrations of CO2 are responsible for killing approx. 120 acres of trees next to Horseshoe Lake and elsewhere on Mammoth Mountain. Inyo National Forest, California, USA

Coffeyville, Kansas, Animal skulls and signs remain as a protest in the dead zone after a 2007 oil spill at the Coffeyville Resources oil refinery. The refinery discharged more than 2.000 barrels of oil and related products during a flood of the Verdigris River. Fifteen years after the spill, there are few homes remaining in the contaminated area

England, North Yorkshire, York. Keep out of ditches warning sign.

A View of green road sign with bushes in the backgroung in Vancouver. "Bicycle theft is a huge Problem for everyone except the police".

Sensitive Habitat sign in Ballona Wetlands, Playa Vista, Los Angeles, California, USA

Danger mines, warning sign on Jordan Bridge at Gadot, Golan, North Israel, Israel, Asia

A sign reading please kokua clean your opala;Oahu hawaii united states of america

USA, California, Sonoma County, Bodega Bay, tsunami evacuation panel

Little River Trail signage, Olympic National Forest, signs encouraging visitors to Leave No Trace

A View of green road sign with bushes in the backgroung in Vancouver. "Bicycle theft is a huge Problem for everyone except the police".

Sign about cancer and birth defects in Midway Sunset oilfield in Maricopa, Bakersfield, California, USA.

A sign warns against trespassing at Denver's wastewater treatment plant, Commerce City, Colordo, USA, America, North America

Usa, Texas, General, Sign Reading Don'T Mess With Texas With Light Cloud And Blue Sky Beyond

A sign reading please kokua clean your opala;Oahu hawaii united states of america

Foreclosures just ahead green road sign with dramatic storm clouds and sky

Large propane tank in landscaped garden Large white propane storage tank behind protective pillars in landscaped garden by home or holiday resort Copyright: xZoonar.com/StevexHeapx 5635187

Sultanate Oman warning oilpipeline

a sign with pictograms indicating activities prohibited in the area, such as littering, swimming, and fishing, River of Life, Kuala Lumpur, Malaysia.

Smokey Bear and an information sign about the danger of fire in the national forest, Oregon, USA, North America

Tsunami Warning Sign

Warning sign against bears, do not leave litter, Slovenia, Europe

sign ´extreme risk of fire´ posted to a tree in dartmoor national park, devon, england

A forest service sign with Smokey Bear warning of fire danger. (Editorial Usage Only)

No Dumping sign, Los Cerritos Channel, Long Beach, California, USA.

stand with free mineral mud on coast of Dead Sea

Kalgoorlie water pipeline spans the southwest of Western Australia from Helena River Reservoir near Perth to the goldfields, sharing the corridor with the Great Eastern Highway through Yellowdine Nature Reserve, near Southern Cross, Western Australia,3/27/2010

Don't waste water circa 1941-1943.

Pest control warning sign, New Zealand

Flooded Nature Reserve A Signpost with the Words Renaturation and Drainage Stands in Front of a Wetland Biotope Photo Assembly

Tsunami evacuation sign along road.

Adopt a highway road sign in the Bitterroot National Forest, Idaho.

Drain watercraft to keep from spreading Aquatic Invasive Species Drain watercraft to keep from spreading Aquatic Invasive Species to other lakes and streams in Arizona Copyright: xZoonar.com/NormxLanex 16032062

Disinfectant for shoes to stop the spread of Kauri Dieback Disease in Walau Falls Scenic Reserve, Coromandel Peninsula, North Island, New Zealand

Prevention panel NP Kruger South Africa

Poison bait protest sign, west coast, New Zealand

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