Science[r]: The organized body of knowledge based on non–trivial refutable concepts that can be verified or rejected on the base of observation and experimentation [e]
Acid rain[r]: Deposition of acidified rain, snow, sleet, hail, gases and particles, and acidified fog and cloud water, due to nitric or sulfuric acid pollution. [e]
Age (geology)[r]: The fundamental chronostratigraphic unit. [e]
Air pollution dispersion modeling[r]: Describes the basic mathematical simulation (i.e., modeling) of how buoyant air pollutants disperse in the atmosphere. [e]
Air Quality Index[r]: A number used by government agencies to characterize the quality of the ambient air at a given location. [e]
Biostratigraphy[r]: A domain of stratigraphy that involves the identification of fossils and their position relative to their occurrences in space and time. [e]
Cambrian (geology)[r]: First geologic period of Palaeozoic time stretching approximately from 550 to 480 million years BP. [e]
Geochronology[r]: Science of determining the absolute age of rocks, fossils, and sediments, within a certain degree of uncertainty inherent within the method used. [e]
Geologic ages of earth history[r]: Measurement of the geologic history of the earth which can be broadly classified into two periods: the Precambrian supereon and the Phanerozoic eon. [e]
Geomorphology[r]: The study of the landforms and geological history of an area, the processes that have shaped the landscape, and the time period over which these processes occur. [e]
Geophysics[r]: The study of the Earth by quantitative physical methods, namely seismic, magnetic, electrical, electromagnetic, thermal and radioactivity methods. [e]
Global warming[r]: The increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation. [e]
Greenhouse effect[r]: A general attribute of planets and moons with atmospheres denoting an imbalance between surface radiation and top-of-atmosphere radiation due to the presence of greenhouse gases. [e]
Hydrology[r]: The interdisciplinary study of the movement, characteristics and distribution of water, surface-water (fresh water and salt water), groundwater, and water-quality. [e]
Lithostratigraphy[r]: Stratigraphy based on the interpretation of physical and petrographic properties of rocks. [e]
National Center for Atmospheric Research[r]: A non-governmental U.S.-based institute whose mission is "exploring and understanding our atmosphere and its interactions with the Sun, the oceans, the biosphere, and human society." [e]
Natural environment[r]: A term that encompasses all living and non-living things occurring naturally on Earth or some region of Earth. [e]
Oceanography[r]: The scientific study of the oceans. [e]
Ocean heat content[r]: The amount of heat stored in the oceans which is used by scientists to analyze and project climate change. [e]
Palynology[r]: The science of the study of contemporary and fossil palynomorphs as well as associated particulate organic matter (POM) in sedimentary strata. [e]
Geomorphology[r]: The study of the landforms and geological history of an area, the processes that have shaped the landscape, and the time period over which these processes occur. [e]