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Earth and Planetary Sciences
United States of America
100%
Holocene
62%
Arizona
60%
Alaska
54%
Climate Change
42%
Colorado
34%
Tectonics
33%
North America
33%
California
32%
Nevada
31%
Carbon Dioxide
27%
Magma
25%
Amino Acid
25%
Geochronology
21%
Miocene
19%
Eocene
19%
Mexico
18%
Lacustrine Deposit
18%
Racemization
17%
Protective Atmosphere
17%
Stratigraphy
17%
Atmospherics
16%
Sandstone
16%
Paleoclimate
16%
Environmental Change
15%
National Parks
15%
Terrane
15%
Pliocene
14%
Volcanism
14%
Pleistocene
14%
Peninsula
14%
Volcano
14%
Utah
14%
Lithosphere
14%
Magmatism
13%
Late Pleistocene
13%
Tephra
11%
Continent
11%
Basalt
11%
Sediment Core
11%
Igneous Rocks
11%
Exhumation
11%
Albedo
11%
Climate Variation
10%
Wyoming
10%
Oxygen 18
9%
Canada
9%
Transportation
9%
Asteroid
9%
Land Use
9%
Terrestrial Ecosystem
9%
Lake Level
9%
Ecology
9%
Andes
8%
Sea Level
8%
Carbon Cycle
8%
Lower California (Mexico)
8%
Oligocene
8%
Early Holocene
8%
Strike-Slip Fault
8%
Wisconsin
8%
Gulf of California (Mexico)
8%
Methane
8%
Subduction Zone
8%
Rifting
8%
Devonian
8%
Spain
8%
Subsidence
8%
Organic Carbon
8%
Late Cretaceous
7%
Younger Dryas
7%
Little Ice Age
7%
Northern Hemisphere
7%
Basin Evolution
7%
Accumulation Rate
7%
Land Surface
7%
New Mexico
7%
Idaho
7%
Fault Zone
7%
Diatom
7%
Regolith
7%
Volcanic Rock
7%
Rhyolite
7%
Evapotranspiration
7%
Sedimentary Rock
7%
Hydrology
7%
Remote Sensing
7%
Plate Boundary
7%
Global Change
6%
Climate Modeling
6%
Aridity
6%
Keyphrases
Arizona
49%
Alaska
30%
Climate Change
27%
North America
25%
Drought
16%
Asteroids
16%
Northern Arizona
15%
Late Holocene
15%
United States
13%
Colorado Plateau
12%
Mars
12%
Arbuscular Mycorrhizal Fungi
12%
Glacier
11%
Amino Acid Racemization
11%
Sierra Nevada
10%
Utah
10%
High Elevation
10%
Late Pleistocene
10%
Magma
9%
Early Holocene
9%
Southwestern United States
9%
Mexico
9%
Carbonate
9%
High-resolution
9%
Zircon
8%
Stratigraphy
8%
Exoplanets
8%
Environmental Change
8%
Bennu
8%
(101955) Bennu
8%
Nevada
8%
Western United States
8%
Vegetation Change
8%
Resilience
8%
Colorado
8%
Lake Sediments
7%
Wildfire
7%
Wyoming
7%
Terranes
7%
Canyon
7%
Sediment Core
7%
Ponderosa pine
7%
Creek
7%
Drylands
7%
Grassland
7%
Amino Acids
7%
Southwestern Alaska
7%
Heterostraci
6%
Grand Canyon
6%
COVID-19
6%
Mycorrhiza
6%
Albedo
6%
Hopi
6%
Sonoran Desert
6%
Canada
6%
20th Century
6%
Lake Mead
6%
Navajo
6%
Global Change
6%
Little Ice Age
6%
Fire Regime
6%
Mycorrhizal
6%
Plant Species
6%
Terrestrial Biosphere Model
6%
Time Averaging
6%
Aging Model
6%
Gross Primary Productivity
6%
Western North America
6%
Climate Models
6%
Near-Earth Asteroids
5%
Magmatism
5%
Idaho
5%
Sedimentary Record
5%
Ponds
5%
Climate Change Impacts
5%
Ignimbrite
5%
Ponderosa pine Forest
5%
Paleoclimate
5%
Kinematics
5%
Forest Restoration
5%
Sandstone
5%
Younger Dryas
5%
Volcanism
5%
Arbuscular Mycorrhizal Fungal
5%
Radiocarbon Dating
5%
Detrital Zircon
5%
Moraines
5%
Tephra
5%
Dust
5%
Volcanic
5%
Geochronology
5%
Vertebrates
5%
Earthquake
5%
Pollen Record
5%
Southern California
5%
Climate Variability
5%
Near-Earth Objects
5%
Evapotranspiration
5%
Volcano
5%