Index

This page contains a comprehensive index of all the major topics of each episode, beginning with the first episode in which the short format with only the "Sounds and Music" segment was used: Episode 67 on June 6, 2011. All episodes since are indexed here by general category, with links to the episode to which they refer.

Amphibians
American Bullfrog EP381 – 8/14/17; EP657 – 6/12/23
American Toad  | EP413 - 3/26/18
Barking Treefrog  | EP319 - 6/6/16
Brimley's Chorus Frog | EP563 - 2/8/21
Chorus Frogs Group | EP620 - 3/14/22
Coastal Plains Leopard Frog  | EP515 - 3/9/20 
Eastern Spadefoot | EP 357 - 2/27/17
Fowler's Toad  | EP424 - 6/11/18 
Frog Level EP6597/10/23
Cope's Gray Treefrog | EP528 – 6/8/20
Gray Treefrog | EP5245/11/20 (sounds of animals survey); EP528 – 6/8/20; EP 631 - 7/4/22 (July 4 Debate); EP634 - 8/15/22
Green Frog
| EP 310 - 4/4/16
Hellbender | EP 185 - 10/28/13
Herp Blitz (Va. Herpetological Society Survey) | EP 371 - 6/5/17 (features sounds of Bullfrog, Gray Treefrog, Northern Cricket Frog, Fowler's Toad, Green Frog)
Little Grass Frog  | EP509 - 1/27/20
Medleys of calls | EP 206 - 3/24/14 (American Toad, Spring Peeper, Wood Frog); EP 408 - 2/19/18 (American Toad, Bullfrog, Carpenter Frog, Gray Tree Frog, Green Frog, Mountain Chorus Frog, Northern Cricket Frog, Pickerel Frog, Spring Peeper, Wood Frog); EP516 - 3/16/20 (Upland Chorus Frog with several non-amphibians); EP620 - 3/14/22 (Brimley's Chorus Frog, Little Grass Frog, Mountain Chorus Frog, New Jersey Chorus Frog, Southern Chorus Frog, Spring Peeper, Upland Chorus Frog; EP 649 - 2/20/23 (Coastal Plains Leopard Frog, Eastern Narrow-mouthed Toad, Green Treefrog, Little Grass Frog, Oak Toad, Pine Woods Treefrog, Southern Chorus Frog, Squirrel Treefrog, and Upland Chorus Frog)
Mountain Chorus Frog | EP620 - 3/14/22
Oak Toad  | EP482 - 7/22/19
Salamanders generally | EP 257 - 3/16/15
American Avocet | EP543 – 9/21/20
American Coot | EP391 – 10/23/17 
American Oystercatcher | EP488 – 9/2/19
American Woodcock | EP462 – 3/4/19
Bald Eagle | EP375 – 7/3/17
Baltimore Oriole
EP2645/4/15
; EP627 – 5/9/22
Belted Kingfisher | 
EP224 – 7/28/14
Black skimmers | EP213 – 5/12/14
Black-crowned Night Heron EP23510/13/14
Black-necked Stilt | EP543 – 9/21/20
Barred Owl EP382 – 8/21/17
Brant (goose) | EP615 – 2/7/22
Canada Goose EP3359/26/16 
Cedar Waxwing EP3329/5/16
Christmas Bird CountEP607 – 12/13/21
Cormorants | EP467 – 4/8/19
Cuckoos and rain | EP536– 8/3/20
Ducks | EP136 – 11/12/12; EP3032/15/16 (Common Goldeneye); EP398 – 12/11/17 (Teal);  EP443 – 10/22/18 (Wood Duck); EP472 – 5/13/19 (Mallard); EP490 – 9/16/19 (Black-bellied Whistling Duck); EP604 – 11/22/21 (Canvasback): EP670 - 12/11/23 (duck names quiz game: Canvasback, Common Goldeneye; Green-winged Teal; Hooded Merganser; Mallard; Northern Shoveler; Wood Duck)
Eastern Phoebe
EP416 – 4/16/18
Eastern Screech-OwlEP227 – 8/18/14
eBird EP440 – 10/1/18
Fall migratory birds | EP281 – 9/14/15; EP3359/26/16; EP603 – 11/15/21 (Broad-winged Hawk, Green Heron, Least Tern, Osprey, Piping Plover, Snowy Egret, Sora)
Fish Crow
EP3521/23/17

Great Blue Heron
|
EP118 – 7/9/12; EP381 – 8/14/17; EP633 - 8/1/22
Great Egret
|
EP633 - 8/1/22
Greater and Lesser Yellowlegs | EP636 - 9/12/22
Green Heron
EP1279/10/12

GrebesEP664 – 9/18/23
HummingbirdsEP281 – 9/14/15 
Killdeer | EP411 – 3/12/18
Little Blue Heron EP478 – 6/24/19
Loons | EP445 – 11/5/18
Marsh birds generally | EP430 – 7/23/18 (Great Blue Heron, Wood Duck, Northern Harrier, Least Bittern, Common Moorhen, Marsh Wren)
Merlin ID Tool EP654 – 5/1/23
Northern Harrier | EP561 - 1/25/21
Osprey | EP116 – 6/25/12; EP590 – 8/16/21
Royal Tern | EP68 – 6/13/11
Sandpipers
EP2645/4/15
;
EP3155/9/16; EP516 - 3/16/20; EP636 - 9/12/22
Snow Goose | 
EP507 – 1/13/20
Sparrows
EP2542/23/15
; EP511 – 2/10/20 (Saltmarsh Sparrow)
Spring migration | EP572 – 4/12/21
Summer birds sampler | EP118 – 7/9/12 (Mallard, Canada Goose, Red-winged Blackbird, Belted Kingfisher, Great Blue Heron, Tree Swallow)
SwallowsEP3298/15/16; EP516 - 3/16/20
Swan | EP554 – 12/7/20 (Tundra); EP667 – 10/30/23 (swans in mythology)
Warblers |
EP520 – 4/13/20 (Waterthrushes); EP572 – 4/12/21; EP627 – 5/9/22 (Prothonotary and Parula)
Water use by birds | 
EP137 – 11/19/12
Wild Turkey | EP343 – 11/21/16
Winter birds sampler | EP565 – 2/22/21 (in Chesapeake Bay: Horned Grebe, Dunlin, American Coot, Hooded Merganser, Tundra Swan, and Snow Goose)

Community/Organizations
Chesapeake Bay Restoration Efforts (including TMDL) | EP115 – 6/18/12; EP3052/29/16; EP475 – 6/3/19; EP496 – 10/28/19
Chesapeake Bay Commission | EP496 – 10/28/19 
Clean Water Act | EP2696/8/15; EP380 – 8/7/17; EP451 – 12/17/18; EP658 – 6/26/23
Drinking Water WeekEP3145/2/16
Fix a Leak WeekEP3073/14/16
Fires and fire preventionEP389 – 10/9/17; EP493 – 10/7/19; EP665 – 10/2/23
Envirothon | EP114 – 6/11/12
Outside of Virginia | EP440 – 10/1/18 (e-Bird at Cornell University);  EP471 – 5/6/19 ("Water Rocks!" at Iowa State Univ.); EP497 – 11/4/19 ("Connecting the Drops" in Colorado)
National Parks | EP229 - 9/1/14; EP2309/8/14; EP2319/15/14EP473 – 5/20/19
"Polar Plunge" for Special Olympics | EP3562/20/17
Record water level marker dedication comments | EP86 – 10/31/11
SERCAP (formerly Virginia Water Project) | EP366 – 5/1/17
Trout in the Classroom | EP485 – 8/12/19
U.S. Armed Forces | EP289 – 11/9/15 (Veterans Day episode-Navy); EP341 – 11/7/16 (Veterans Day episode-Air Force);  EP394 – 11/13/17 (Veterans Day episode-Army);  EP446 – 11/12/18 (Veterans Day episode-Marines); EP498 – 11/11/19 (Veterans Day episode-all services except Space Force); EP641 – 11/7/22 (Veterans Day episode-Coast Guard)
Virginia Department of Conservation and Recreation | EP3206/13/16; EP533 – 7/13/20
Virginia Department of Wildlife Resources (until 2020, the Department of Game and Inland FisheriesEP3226/27/16
Virginia General Assembly | EP143 – 1/7/13; EP147 – 2/4/13; EP196 – 1/13/14; EP247 – 1/5/15; EP2522/9/15; EP297 – 1/4/16; EP3022/8/16; EP3501/9/17; EP3531/30/17; EP3593/13/17; EP402 – 1/8/18; EP405 – 1/29/18; EP410 – 3/5/18; EP454 – 1/7/19; EP460 – 2/18/19; EP506 – 1/6/20; EP510 – 2/3/20; EP522 – 4/27/20; EP558 – 1/4/21; EP562 – 2/1/21; EP611 – 1/10/22; EP614 – 1/31/22; EP646 – 1/9/23; EP647 – 1/23/23; EP648 – 2/6/23; EP672 – 1/8/24
Virginia Legislative Commissions, Committees, and Councils | EP508 – 1/20/20 (focus on Commission on Technology and Science, or JCOTS)
Virginia Marine Resources Commission | EP91 – 12/5/11
Virginia Outdoors Plan | EP495 – 10/21/19 
Virginia State Parks |  EP3206/13/16; EP655 – 5/15/23;
Virginia State Water Commission | EP347 – 12/19/16 
Virginia State Water Control Board | EP94 – 1/9/12 
Virginia Water Resources Research CenterEP3012/1/1 (new internship program in 2016)
Virginia Wildlife Action Plan | EP154 – 3/25/13
Walk across Virginia | EP110 – 5/14/12
Water quality agencies in Virginia | EP94 – 1/9/12; EP378 – 7/24/17; EP380 – 8/7/17
Water supply planning | EP261 – 4/13/15 (updates EP85 – 10/24/11)

Energy
American Power Suite EP3165/16/16 
Electricity | EP410 – 3/5/18 (state regulation); EP492 – 9/30/19 (renewable generation); EP522 – 4/27/20 (state regulation/renewable energy)
Hydroelectric power | EP170 – 7/15/13
Natural gas | EP380 – 8/7/17
Solid-waste recycling, energy, and waterEP240 – 11/17/14
Water quality and coal | 
EP97 – 1/30/12; EP98 – 2/6/12; EP99 – 2/13/12

Fish
Atlantic Menhaden | EP635 – 8/29/22
Fish familiesEP241 – 11/24/14
Fish migration | EP211 – 4/28/14 
Fish sounds | EP77 – 8/29/11
Methods of fish sampling | EP660 – 7/24/23
Spring signals to fish and anglers
EP571 - 4/5/21
Trout | EP485 – 8/12/19

Groundwater
Eastern Virginia Groundwater | EP534 – 7/20/20 (SWIFT Project)
Groundwater generally | EP575 – 5/3/21
Information sources EP546 – 10/12/20
Springs |EP576 – 5/10/21; EP577– 5/17/21
Virginia caves | EP527 – 6/1/20 (featuring Luray Caverns' Great Stalacpipe Organ)
Winter precipitation and water supplies | EP567 - 3/8/21
Well drilling | EP578 – 5/24/21
Well-water testingEP579– 5/31/21

History
Cumberland Gap | EP544 – 9/28/20
DamsEP4766/10/19
Exploration of the Chesapeake Bay | EP140 – 12/10/12, EP364 - 12/12/16 (on Werowocomoco); EP538 – 8/17/20 
Exploration of the Roanoke River | EP374 – 6/26/17
FerriesEP457 – 1/28/19
Forks in Waterways, Roads, and Place Names | EP54510/5/20
Fort ValleyEP3318/29/16
Frog Level | EP6597/10/23
Historic-record water level marker dedication at New RiverEP86 – 10/31/11
James River Batteau Festival | EP373 – 6/19/17
July 4 Water Debate | EP 631 - 7/4/22
July 1969 Moon Landing | EP 481 - 7/15/19
Madison County 1995 flash floodsEP272 – 6/29/15 
Maritime history education | EP80 – 9/19/11
Mills | 
EP386 – 9/18/17
Monroe DoctrineEP29312/7/15
Nonesuch (Rocketts Landing)EP458 – 2/4/19
Northern Neck Chantey Singers | EP635 – 8/29/22
Oysters and Oystering in the Chesapeake Bay and Other EstuariesEP279 - 8/24/15
Paint Bank (Craig County) | 
EP386 – 9/18/17
River Piracy
EP491 - 9/23/19
Tribute to George Washington and the Rappahannock | EP304 – 2/22/16
U.S. Armed Forces | EP289 – 11/9/15 (Veterans Day episode-Navy); EP341 – 11/7/16 (Veterans Day episode-Air Force);  EP394 – 11/13/17 (Veterans Day episode-Army);  EP446 – 11/12/18 (Veterans Day episode-Marines); EP498 – 11/11/19 (Veterans Day episode-all services); EP550 – 11/9/20 (Veterans Day episode-all services except Space Force); EP641 – 11/7/22 (Veterans Day episode-Coast Guard)
Virginia and the National Park Service System | EP229 - 9/1/14 
Virginia and the Ohio River ValleyEP422 – 5/28/18
Virginia General Assembly | EP143 – 1/7/13
Virginia Native Peoples | EP364 - 12/12/16 (on Werowocomoco)
Virginia's Western or Alleghany Highlands
| EP577– 5/17/21
Virginia's Peninsula and Historic Triangle EP273 – 7/6/15 
Water and Settlement of Roanoke | EP181 – 9/30/13
Water and the Civil War | EP101 – 3/5/12; EP164 – 6/3/13 (Memorial Day episode); EP223 – 7/21/14 EP412 – 3/19/18; EP459 – 2/11/19; EP628 – 5/23/22 (Memorial Day episode)
Water and the Revolutionary War |
EP168 – 7/1/13; EP220 – 6/30/14; EP273 – 7/6/15; EP390 – 10/16/17
Water and Virginia-born Presidents | EP549 – 11/2/20
Water origins of Virginia Declaration signers | EP220 – 6/30/14
World HistoryEP340 – 11/2/16

Insects
Aquatic insects generallyEP81 – 9/26/11; EP3634/10/17
AntsEP2716/22/15
BeesEP3134/25/16
BeetlesEP5255/18/20
Chironomids (non-biting midges) | EP2686/1/15 
Cicadas | EP5286/8/20
Dragonflies and damselflies | EP119 (revisited) – 8/3/15 
Emerald Ash Borer | EP376 – 7/10/17
MayfliesEP367 – 5/8/17
Monarch Butterflies | EP487 – 8/26/19
Mosquitoes | EP78 – 9/5/11; EP2593/30/15; EP381 – 8/14/17; EP484 – 8/5/19
Spotted Lanternfly | EP415 – 4/9/18
Streamside insectsEP33610/3/16
True bugs (in general)EP23710/27/14
True flies (in general) | 
EP484 – 8/5/19
WaspsEP2767/27/15
 
Invertebrates Other Than Insects
Aquatic invertebrates generallyEP81 – 9/26/11 (in stream assessment);  EP3634/10/17
Freshwater mussels | EP432 – 8/6/18; EP433 – 8/13/18; EP434 – 8/20/18; EP435 – 8/27/18
Freshwater snails | EP262 – 4/20/15

Mammals

Overall Importance of Water
Animals Ways of Getting WaterEP5316/29/20
BarnsEP444 – 10/29/18
Bridges
EP245 – 12/22/14 ; EP447 – 11/19/18 (covered)
DamsEP4766/10/19
Drinking Water WeekEP3145/2/16
FerriesEP457 – 1/28/19
Fires and fire preventionEP389 – 10/9/17; EP493 – 10/7/19; EP665 – 10/2/23
Halloween episodes | EP 185 - 10/28/13; EP548 – 10/26/20; EP595 – 9/20/21; EP601 – 10/31/21; EP639 – 10/24/22; EP640 – 10/31/22; EP667 – 10/30/23
InfrastructureEP372 – 6/12/17; EP599, 10-18-21 (Imagine a Day Without Water campaign)
Labor Day episodes |
EP4369/3/18EP635 – 8/29/22; EP663 – 9/4/23
Marine biodiversity | EP651 - 3/20/23
Midnight sounds | EP381 – 8/14/17
New Year's episodes | Episode 142, 12-31-12; EP29612/28/15; EP3491/2/17; EP401 – 1/1/18; EP453 – 12/31/18; EP505 – 12/30/19
River stewardship | EP383 – 8/28/17
Rural Virginia Water/Wastewater | 
EP366 – 5/1/17
 
Sounds of Animals SurveyEP5245/11/20 (msoquito, deer fly, Atlantic Croaker, Gray Tree Frog, American Toad, American Bullfrog, Belted Kingfishers, Laughing Gull, Red-winged Blackbird, Bald Eagle, American Beaver, Humpback Whale)
Student shout-outs |  EP3257/18/16 (submerged aquatic plants) EP3634/10/17 (aquatic macroinvertebrates); EP367 – 5/8/17 (mayflies); EP418 – 4/30/18 (student water questions and concerns); EP585 – 7/12/21 (water cycle, watersheds, and stormwater terms)
Thanksgiving episodes | EP291 – 11/23/15; EP343 – 11/21/16; EP395 – 11/20/17; EP500 – 11/25/19; EP642 – 11/21/22; EP668 – 11/13/23
Virginia Household Water Quality ProgramEP579– 5/31/21
Virginia Water Story Overview | EP500 – 11/25/19
Virginia Tech students' Virginia Water Lessons EP244 – 12/15/14
U.S. elections EP340 – 11/2/16 ; EP541 – 9/7/20
Water and diseases | EP29011/16/15 (antibiotic resistance); EP2593/30/15 (avian malaria); EP517 – 3/23/20 (on COVID-19); EP519 – 4/6/20 (on COVID-19); EP598 – 10/11/21 (on influenza)
Water and human relationships | EP142 – 12/31/12 ; EP3511/16/17
Water imagery and other language devices | EP142 – 12/31/12 ; EP200 – 2/10/14; EP29612/28/15; EP401 – 1/1/18 ; EP547 – 10/19/20 (expressions); EP548 – 10/26/20 (readings for Halloween);  
EP555 – 12/14/20 (jokes)
Water conservation
EP3073/14/16

Water Radio's final regular episodeEP674 – 2/5/24
Water resources degree at Virginia Tech EP243 – 12/8/14
Winter precipitation and water supplies | EP567 - 3/8/21
Worldwide water needs | EP122 – 8/6/12; EP599, 10-18-21 (Imagine a Day Without Water campaign)

Plants
Ash trees | EP376 – 7/10/17; EP625 – 4/18/22
Chesapeake Bay Submerged Aquatic Vegetation
EP3257/18/16
Early spring plants | EP521 – 4/20/20; EP573 – 4/19/21
Fifteen Minutes in the Forest podcastEP637 – 9/26/22
Flora of VirginiaEP3542/6/17 
Forest Work | EP623 – 4/4/22
Maple trees | EP503 – 12/16/19
Milkweeds | EP487 – 8/26/19
Photosynthesis | EP602 – 11/8/21
Poison Ivy and related | 
EP535 – 7/27/20

Rhododendrons | EP574 – 4/26/21
Shrubs | EP630 – 6/20/22
Sycamore trees | 
EP624 – 4/11/22
Tree buds | EP622 – 3/28/22
Tree colors and changes in fall | EP638 – 10/10/22
Tree structures for water movement | EP638 – 10/10/22
Trees' benefits and impacts on water | EP621 – 3/21/22; EP644 – 12/19/22
T
ree
s and water quiz for Halloween | EP640 – 10/31/22
Trees inhabiting Virginia watery places | EP626 – 4/26/22
Waterside trees as bird nesting habitat |
EP627 – 5/9/22
Virginia Bluebells |
EP521 – 4/20/20
Virginia Forest Lands | EP623 – 4/4/22
Witch Hazel
EP639 – 10/24/22

Recreation
Aquatic exercise | EP483 – 7/29/19
Boating safety | EP111 – 5/21/12 (Safe Boating Week in 2012); EP370 – 5/29/17 (Safe Boating Week in 2017); EP5847/5/21 (Operation Dry Water and BUI)
Dock safety | EP131 – 10/8/12
Fishing-line recycling | EP383 – 8/28/17; EP590 – 8/16/21 
Hydration during sports | EP466 – 4/1/19
National parks, seashores, and related places EP229 - 9/1/14; EP2309/8/14; EP2319/15/14; EP3685/15/17 
New River | EP179 – 9/16/13
River stewardship | EP383 – 8/28/17
SCUBA diving
EP6731/22/24
Smart buoys in Chesapeake Bay | EP538 – 8/17/20
Spring signals to fish and anglers | EP571 - 4/5/21
Stream access law in VirginiaEP76 – 8/22/11; EP147 – 2/4/13; EP33910/24/16
Virginia Outdoors Plan | EP495 – 10/21/19
Virginia State Parks | EP161 – 5/13/13; EP3206/13/16 ; EP381 – 8/14/17 (Claytor Lake); EP655 – 5/15/23

Reptiles
American Alligator | EP167 – 6/24/13
Diamondback Terrapins | EP70 – 7/4/11
Herp Blitz (Va. Herpetological Society
| EP 371, 6/5/17 (features sound of rattlesnake)
Lizards | EP514 – 3/2/20
Reptiles generally | EP123 – 8/13/12
Turtles | EP70 – 7/4/11 (Diamondback Terrapins); EP513 – 2/24/20 (turtles generally)

Rivers, Streams, and Other Surface Water
Big Otter RiverEP426 – 6/25/18
Big Run (Shenandoah National Park)EP473 – 5/20/19; EP583 – 6/28/21 
Big Sandy River | EP4195/7/18; EP4369/3/18
Blue Ridge and the Rockfish River | EP192 – 12/16/13
Blue Ridge creating watersheds | EP583 – 6/28/21
Cripple Creek | EP202 – 2/24/14
Forks in WaterwaysEP54510/5/20
Goose Creek in Loudoun CountyEP28610/19/15
Hazel River in Rappahannock and Culpeper countiesEP33910/24/16; EP583 – 6/28/21 
Headwater streams | EP582 – 6/21/21
Holston RiverEP4256/18/18 (South Fork); EP433 – 8/13/18 (North Fork/freshwater mussels)
Impaired waters/Total Maximum Daily Loads (TMDLs)EP1156/18/12 
Jackson River | EP4287/9/18; EP447 – 11/19/18 (on tributary Dunlap Creek)
James River basin rivers  | EP 87 - 11/7/11;  EP 164 – 6/3/13; EP 220 - 6/30/14; EP265 - 5/11/15; EP 273 - 7/6/15; EP373 – 6/19/17; EP4287/9/19; EP458 – 2/4/19; EP459 – 2/11/19; EP469 – 4/22/19; EP486 – 8/19/19; EP577– 5/17/21; EP583 – 6/28/21 
Lake DrummondEP479 – 7/1/19
Mountain GapsEP288 – 11/2/15
Potts Creek (Jackson River basin) | EP386 – 9/18/17
Rapidan RiverEP272 – 6/29/15 
Rappahannock River or basin | EP71 – 7/11/11; EP89 – 11/21/11; EP245-12/22/14; EP272 – 6/29/15; EP304 – 2/22/16; EP33910/24/16; EP437 – 9/10/18; EP583 – 6/28/21; EP588 – 8/2/21
Rappahannock River Dam Removal | 
EP71 – 7/11/11
River stewardship | EP383 – 8/28/17
River bluffs | EP587 – 7/26/21
Rivers and trains | EP129 – 9/24/12 
Roanoke River or basin EP3603/20/17; EP374 – 6/26/17; EP426 – 6/25/18; EP583 – 6/28/21 
Sinking Creek (Giles County) |  EP447 – 11/19/18
Smith River EP3603/20/17 EP447 – 11/19/18; EP485 – 8/12/19
Staunton RiverEP374 – 6/26/17
Stream/river channel energy and patternsEP248 – 1/12/15
Virginia's PeninsulasEP273 – 7/6/15
Virginia Rivers Quiz (mentions watersheds of Big Sandy, Clinch, Chowan, Dan, Holston, James, New, Potomac, Powell, Rappahannock, Roanoke, Shenandoah, Yadkin, and York) | EP586 – 7/19/21
Virginia Surface Water NumbersEP539 – 8/24/20
Waterfalls | EP125 – 8/27/12 (Crabtree Falls in Nelson County); EP205 – 3/17/14 (Falls Ridge in Montgomery County); EP222 – 7/14/14 (Cascades in Giles County); EP666 – 10/16/23 (waterfalls generally)
Watersheds | EP581 – 6/14/21EP582 – 6/21/21; EP583 – 6/28/21; EP585 – 7/12/21; EP586 – 7/19/21; EP587 – 7/26/21; EP588 – 8/2/21; EP589 - 8/9/21
Wetlands |
EP2696/8/15, EP327 – 8/1/16; EP380 – 8/7/17  (and natural gas pipelines); EP429 – 7/16/18; EP430 – 7/23/18EP479 – 7/1/19 (Dismal Swamp); ; EP511 – 2/10/20 (salt marshes and Saltmarsh Sparrow)
York River | EP364 - 12/12/16; EP390 – 10/16/17; EP587 – 7/26/21

Science
Air pollutionEP2309/8/14
Algae (including Phytoplankton) EP171 – 7/22/13; EP279 - 8/24/15; EP2809/7/15; EP2981/11/16 (as part of lichens)
BiodiversityEP2604/6/15; EP3685/15/17; EP651 - 3/20/23
BioluminescenceEP2788/17/15
Buoyancy | EP483 – 7/29/19; EP6731/22/24 (in Scuba);
Christmas Bird Count | EP607 – 12/13/21
Density | EP255 - 3/2/15; EP483 – 7/29/19; EP6731/22/24 (in Scuba)
Dissolved OxygenEP3339/12/16; EP6731/22/24 (in Scuba)
Drones (Unmanned Aerial Systems) | EP384 - 9/4/17
eBird EP440 – 10/1/18
EvaporationEP3134/25/16 (in bees)
Fungi |  EP2981/11/16 (as part of lichens)
Geography | EP265 - 5/11/15
Human circulatory system
| EP593 – 9/6/21
Human muscular system | EP596 – 9/27/21
Human nervous system
|
EP594 – 9/13/21
Human skeletal system | EP595 – 9/20/21
Invasive species | EP321 – 6/20/16; EP383 – 8/28/17; EP415 – 4/9/18
Living vs. Non-Living, for KindergartenEP282 – 9/21/15
Lichens |  EP2981/11/16
Long-term Ecological Research SitesEP2839/25/15
The Moon | EP 481 - 7/15/19
Nitrogen EP279 - 8/24/15; EP2809/7/15
Photosynthesis | EP602 – 11/8/21
Physical/chemical properties of water |
EP207 – 3/31/14 (relative humidity); EP210 – 4/21/14 (as a solvent); EP217 – 6/9/14; EP250 - 1/26/15 EP255 - 3/2/15; EP3134/25/16 (evaporation in bees); EP3339/12/16 (on dissolved gases)EP404 – 1/22/18; EP407 – 2/12/18; EP483 – 7/29/19 (buoyancy, drag, density, and viscosity); EP556 – 12/21/20 (ice effects on organisms); EP594 – 9/13/21 (as a biological solvent); EP606 – 12/6/21; EP610 – 1/3/22; EP617 – 2/21/22; EP6731/22/24 (in Scuba)
Phytoplankton | EP171 – 7/22/13; EP279 - 8/24/15
Rainbows | EP225 – 8/4/14
Relative humidity | EP207 – 3/31/14; EP662 – 8/21/23
Rock cycle | EP203 – 3/3/14
SonificationEP2839/25/15  
Space | EP 481 - 7/15/19 
Stream assessment with aquatic macroinvertebratesEP81 – 9/26/11
Stream flow measurement
EP3247/11/16; EP546 – 10/12/20
Streams underground
EP409 – 2/26/18
Stream/river channel energy and patternsEP560 – 1/18/21
Streamside insect and spider sampling
EP33610/3/16
Surface tension | EP217 – 6/9/14
Tides EP441 – 10/8/18; EP481 - 7/15/19
Temperature in animals EP309 - 3/28/16
Virginia college students' research
| on antibiotic resistance: EP29011/16/15; on avian malaria: EP2593/30/15; on buried streams underground: EP409 – 2/26/18; on the Emerald Ash Borer: EP376 – 7/10/17; on headwater streams: EP582 – 6/21/21; on oysters and nitrogen: EP2809/7/15; on soils and greenhouse gases: EP312 – 4/18/16; on water utility customers' trust: EP564 – 2/15/21.
Virginia Tech students' Virginia Water Lessons
EP244 – 12/15/14
Virtual reality research | EP34211/14/16 (on tornadoes at Virginia Tech)
Underwater Environment | EP6731/22/24
Water resources degree at Virginia Tech EP243 – 12/8/14
Water quantity
EP546 – 10/12/20
; EP569 – 3/22/21
Water thermodynamics | EP610 – 1/3/22

Water Quality, including Waste Management and Water/Wastewater Treatment
Emerging Contaminants | EP499 – 11/18/19
Fishing-line recycling | EP590 – 8/16/21
Medication disposal | EP417 – 4/23/18
Motor oil and water | EP188 – 11/18/13 
Natural Gas Pipeline Issues | EP380 – 8/7/17
Nitrogen EP279 - 8/24/15; EP2809/7/15
River stewardship | EP383 – 8/28/17 
Solid-waste recycling, energy, and waterEP240 – 11/17/14
Wastewater treatment plants | EP378 – 7/24/17
Water monitoringEP81 – 9/26/11 (stream assessment with aquatic macroinvertebrates), EP384 - 9/4/17 (using drones, or Unmanned Aerial Systems); EP414 – 4/2/18 (water-quality monitoring);
EP529 – 6/15/20 (biennial water-quality assessment report, including impaired waters and TMDLs); EP537 – 8/10/20 (Chesapeake Bay conditions); EP632 – 7/18/22 (Chesapeake Bay Conditions)
Water quality and coal | EP97 – 1/30/12; EP98 – 2/6/12; EP99 – 2/13/12
Waterways Cleanups | EP180 Revisited – 8/31/15; EP383 – 8/28/17

Weather/Climate/Natural Disasters
Climate and Climate Change (including Sea-level Rise)EP2319/15/14; EP312 – 4/18/16; EP441 – 10/8/18 (sea level rise and king tides); EP494 – 10/14/19 (sea level rise and coastal flooding); EP511 – 2/10/20 (on sea-level rise and the Saltmarsh Sparrow); EP552 – 11/23/20 (on sea-level rise and Virginia planning); EP602 – 11/8/21 (on photosynthesis and 2021 international climate conference); EP608 – 12/20/21 (update on Virginia planning for sea-level rise)
Clouds
EP377 – 7/17/17
Dew Point | EP662 – 8/21/23
Drought | EP546 – 10/12/20 (information source)
Earthquake drills | 
EP388 – 10/2/17
Earthquake research | EP133 – 10/22/12
Floods | EP272 – 6/29/15  (Madison County in 1995); EP3288/8/16 (flash flooding); EP441 – 10/8/18 (sea level rise and coastal flooding); EP442 – 10/15/18 (historic-record water level marker dedication at New River); EP486 – 8/19/19 (from Hurricane Camille in Nelson County in 1969); EP494 – 10/14/19 (sea level rise and coastal flooding); EP546 – 10/12/20 (information source)
Fog | 
EP512 – 2/17/20
Freezing RainEP613 – 1/24/22
FrostEP597 – 10/4/21
HailEP3624/3/17
Ice | EP404 – 1/22/18; EP556 – 12/21/20; EP606 – 12/6/21; EP617 – 2/21/22
Rainfall/Precipitation generally
|
EP338 – 10/17/16 (frequency probabilities); EP455 – 1/14/19 (record precipitation in 2018); EP546 – 10/12/20 (information sources); EP559 – 1/11/21 (record precipitation in 2020)
Severe Weather Awareness Week | EP650 – 3/6/23
Sleet | EP613 – 1/24/22
Snow | EP407 – 2/12/18; EP6121/17/22 (snow terms); EP613 – 1/24/22
Storm surge | EP134 – 10/29/12; EP33710/10/16; EP385 – 9/11/17; EP489 – 9/9/19
Stormwater | EP182 – 10/7/13; EP338 – 10/17/16; EP468 – 4/15/19 (storm-drain markers); EP585 – 7/12/21
Tornadoes | EP34211/14/16 (research via virtual reality); EP568 – 3/15/21 (preparedness, safety, statewide drill)
Tropical Cyclones (Hurricanes and Tropical Storms) | EP134 – 10/29/12 (Hurricane Sandy); EP163 – 5/27/13 (annual season-preview episode); EP215 – 5/26/14 (annual season-preview episode); EP266 - 5/18/15 (annual season-preview episode); EP317 - 5/23/16 (annual season-preview episode); EP330 - 8/22/16 (mid-season outlook); EP33710/10/16 (Hurricane Matthew); EP345 - 12/5/16 (season-review episode); EP369 - 5/22/17 (annual season-preview episode); EP385 – 9/11/17 (Hurricane Irma and storm surge); EP423 - 6/2/18 (annual season-preview episode); EP438 - 9/17/18 (basic hurricane facts and history); EP474 - 5/27/19 (annual season-preview episode); EP526 - 5/25/20 (annual season-preview episode); EP580 - 6/7/21 (annual season-preview episode); EP629 - 6/6/22 (annual season-preview episode); EP656 - 5/29/23 (annual season-preview episode)
Weather balloons | EP532 – 7/6/20
Weather messages | EP470 – 4/29/19