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Image: Turtle Nest
Turtle Nest
Turtle Nest
Turtle Nest

Turtle nest dug-up by scavengers.

Turtle nest dug-up by scavengers.

Image: Bald Cypress Trees
Bald Cypress Trees
Bald Cypress Trees
Bald Cypress Trees

Bald cypress trees (Taxodium distichum) at sunrise.

Bald cypress trees (Taxodium distichum) at sunrise.

Image: Spawning Westslope Cutthroat Trout in the Flathead
Spawning Westslope Cutthroat Trout in the Flathead
Spawning Westslope Cutthroat Trout in the Flathead
Spawning Westslope Cutthroat Trout in the Flathead

This is spawning westslope cutthroat trout captured in Langford Creek, North Fork Flathead River, Montana.

This is spawning westslope cutthroat trout captured in Langford Creek, North Fork Flathead River, Montana.

PubTalk 4/2003 — Gaia's Breath
PubTalk 4/2003 — Gaia's Breath
PubTalk 4/2003 — Gaia's Breath

Methane and the Future of Natural Gas

By Keith A. Kvenvolden, Geochemist 

 

Methane and the Future of Natural Gas

By Keith A. Kvenvolden, Geochemist 

 

Lava moving rapidly at front of breakout
Lava moving rapidly at front of breakout
Lava moving rapidly at front of breakout

Lava moving rapidly at front of breakout 880 m north of coconut grove. Width of view, about 1.5 m.

Lava moving rapidly at front of breakout 880 m north of coconut grove. Width of view, about 1.5 m.

Lava at front of breakout
Lava at front of breakout
Lava at front of breakout

Lava at front of breakout moves into and burns dead shrubbery. Width of view, about 2 m.

Lava at front of breakout moves into and burns dead shrubbery. Width of view, about 2 m.

Lava moving along east edge of breakout near ahu
Lava moving along east edge of breakout near ahu
Lava moving along east edge of breakout near ahu

Lava moving along east edge of breakout near ahu. Width of view, about 1 m.

Evaportranspiration equipment along the Tracy Segment, Nevada
Evaportranspiration equipment along the Tracey Segment
Evaportranspiration equipment along the Tracey Segment
Evaportranspiration equipment along the Tracey Segment

Evaportranspiration equipment along the Tracey Segment

Map of Mars made with Mars Orbiter Laser Altimeter
MGS MOLA Global Colorized Hillshade
MGS MOLA Global Colorized Hillshade
MGS MOLA Global Colorized Hillshade

This map is based on data from the Mars Orbiter Laser Altimeter (MOLA; Smith and others, 2001), an instrument on NASA’s Mars Global Surveyor (MGS) spacecraft (Albee and others, 2001).

This map is based on data from the Mars Orbiter Laser Altimeter (MOLA; Smith and others, 2001), an instrument on NASA’s Mars Global Surveyor (MGS) spacecraft (Albee and others, 2001).

Lava moves rapidly from under crust
Lava moves rapidly from under crust
Lava moves rapidly from under crust

Lava moves rapidly from under crust of inflating flow and finally disappears under overhang. Length of flowing toe, about 1 m.

Lava moves rapidly from under crust of inflating flow and finally disappears under overhang. Length of flowing toe, about 1 m.

Continued movement of lava across rope barrier
Continued movement of lava across rope barrier
Continued movement of lava across rope barrier

Continued movement of lava across rope barrier. Muffled sounds of a long-lasting, migrating methane explosion can be heard about two-thirds of the way through the clip, followed by a "Wow."

Continued movement of lava across rope barrier. Muffled sounds of a long-lasting, migrating methane explosion can be heard about two-thirds of the way through the clip, followed by a "Wow."

Lava breaks out of inflated toe
Lava breaks out of inflated toe
Lava breaks out of inflated toe

Lava breaks out of inflated toe and moves down moderate slope with rolling motion, top faster than bottom. See still images for this day; sagging rope gives scale.

Lava breaks out of inflated toe and moves down moderate slope with rolling motion, top faster than bottom. See still images for this day; sagging rope gives scale.

Lava moves across rope
Lava moves across rope
Lava moves across rope

Broad toe of lava moves across rope that formed barrier for access to Wilipe`a lava delta.

Broad toe of lava moves across rope that formed barrier for access to Wilipe`a lava delta.

map of western U.S.showing sagebrush-dominated ecoregions
Sagebrush-dominated ecoregions
Sagebrush-dominated ecoregions
Sagebrush-dominated ecoregions

Sagebrush-dominated ecoregions in the western United States (sagebrush cover types shown in various shades of yellow, pink, and blue-grey).

Sagebrush-dominated ecoregions in the western United States (sagebrush cover types shown in various shades of yellow, pink, and blue-grey).

Lava burning bush
Lava burning bush
Lava burning bush

Lava moving down rather steep slope and burning bush at snout of stream. Width of burning bush, about 1 m.

Lava moving down rather steep slope and burning bush at snout of stream. Width of burning bush, about 1 m.

Lava moving rapidly
Lava moving rapidly
Lava moving rapidly

Toe of lava moving fairly rapidly down moderate slope along edge of Kohola flow. Note that lava moves more rapidly at top than at base of toe, in contrast to lava in video for March 1, which was moving across nearly flat ground. Note also developing wrinkles in moving crust.

Toe of lava moving fairly rapidly down moderate slope along edge of Kohola flow. Note that lava moves more rapidly at top than at base of toe, in contrast to lava in video for March 1, which was moving across nearly flat ground. Note also developing wrinkles in moving crust.

Image: Double-crested Cormorant (Phalacrocorax auritus)
Double-crested Cormorant (Phalacrocorax auritus)
Double-crested Cormorant (Phalacrocorax auritus)
Double-crested Cormorant (Phalacrocorax auritus)

Double-crested cormorant perched on a tree limb.

Image: Double-crested Cormorant (Phalacrocorax auritus)
Double-crested Cormorant (Phalacrocorax auritus)
Double-crested Cormorant (Phalacrocorax auritus)
Double-crested Cormorant (Phalacrocorax auritus)

Double-crested cormorant perched on a tree.

Lava flow advancing
Lava flow advancing
Lava flow advancing

Details of flow advance shown in 25-second clip. Lava oozes outward from base of flow, picks up loose flakes of crust (1-3 cm across) on ground surface, and lifts them up as flow thickens. This is how material once on ground surface gets onto top of flow.

Details of flow advance shown in 25-second clip. Lava oozes outward from base of flow, picks up loose flakes of crust (1-3 cm across) on ground surface, and lifts them up as flow thickens. This is how material once on ground surface gets onto top of flow.

A color banded plover in the hand of a scientist.
A color banded plover in the hand of a scientist.
A color banded plover in the hand of a scientist.
A color banded plover in the hand of a scientist.

A color banded plover in the hand of a scientist. 

Broad cascade and falls
Broad cascade and falls
Broad cascade and falls

Part of broad cascade and falls that suddenly gushed from under crust at top of sea cliff. Turn down your sound; lots of wind noise.

Part of broad cascade and falls that suddenly gushed from under crust at top of sea cliff. Turn down your sound; lots of wind noise.