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Ancient ostrich eggshell reveals new evidence of extreme climate change thousands of years ago
extreme climate change ancient ostrich eggshell isotope amino acid evolution of species
2021/8/4
Evidence from an ancient eggshell has revealed important new information about the extreme climate change faced by human early ancestors.
The Value of Climate Amenities: Evidence from U.S. Migration Decisions
U.S. Migration Decisions Amenities
2015/9/18
We would like to thank the U.S. Environmental Protection Agency, Resources for the Future, and
RTI International for funding and Wolfram Schlenker for generously providing data from the Hadley
III m...
The state of earth’s climate is constrained by well-known physical principles such as energy balance and the conservation of energy. Increased greenhouse gas concentrations affect the atmospheric opti...
Evidence for a significant proportion of Secondary Organic Aerosol from isoprene above a maritime tropical forest
a significant proportion Secondary Organic Aerosol isoprene a maritime tropical forest
2011/2/25
Isoprene is the most abundant non-methane biogenic volatile organic compound (BVOC), but the processes governing secondary organic aerosol (SOA) formation from isoprene oxidation are only beginning to...
Evidence for heterogeneous chlorine activation in the tropical UTLS
heterogeneous chlorine the tropical UTLS
2011/1/19
Airborne in-situ observations of ClO in the tropics were made during the TROCCINOX (Aracatuba, Brazil, February 2005) and SCOUT-O3 (Darwin, Australia, November/December 2005) field campaigns. While du...
Evidence for the effectiveness of the Montreal Protocol to protect the ozone layer
the Montreal Protocol the ozone layer
2010/12/28
The release of man-made ozone depleting substances (ODS, including chlorofluorocarbons and halons) into the atmosphere has led to a near-linear increase in stratospheric halogen loading since the earl...
Evidence of the impact of deep convection on reactive Volatile Organic Compounds in the upper tropical troposphere during the AMMA experiment in West Africa
deep convection reactive Volatile Organic Compounds the AMMA experiment West Africa
2010/11/29
A large dataset of reactive trace gases was collected for the first time over West Africa during the African Monsoon Multidisciplinary Analysis (AMMA) field experiment in August 2006. Volatile Organic...
Chemistry of rain events in West Africa: evidence of dust and biogenic influence in convective systems
Chemistry of rain events West Africa dust and biogenic influence convective systems
2010/10/11
This paper documents the chemical composition of 7 rain events associated with mesoscale convective systems sampled at the supersite of Banizoumbou, Niger, during the first special observation periods...
Post-coring entrapment of modern air in some shallow ice cores collected near the firn-ice transition: evidence from CFC-12 measurements in Antarctic firn air and ice cores
modern air shallow ice cores the firn-ice transition CFC-12 measurements Antarctic firn air and ice cores
2010/8/13
In this study, we report measurements of CFC-12 (CCl2F2) in firn air and in air extracted from shallow ice cores from three Antarctic sites. The firn air data are consistent with the known atmospheric...
More evidence for very short-lived substance contribution to stratospheric chlorine inferred from HCl balloon-borne in situ measurements in the tropics
short-lived substance contribution stratospheric chlorine HCl balloon-borne
2010/2/1
Volume mixing ratio (vmr) vertical profiles of hydrogen chloride (HCl) are retrieved from in situ measurements performed by a balloon-borne infrared tunable diode laser absorption spectrometer (SPIRAL...
Evidence of ice crystals at cloud top of Arctic boundary-layer mixed-phase clouds derived from airborne remote sensing
ice crystals Arctic boundary-layer mixed-phase clouds airborne remote sensing
2009/12/31
The vertical distribution of ice crystals in Arctic boundary-layer mixed-phase (ABM) clouds was investigated by airborne remote-sensing and in situ measurements during the Arctic Study of Tropospheric...
Amorphous and crystalline aerosol particles interacting with water vapor: conceptual framework and experimental evidence for restructuring, phase transitions and kinetic limitations
crystalline aerosol particles water vapor conceptual framework experimental evidence
2009/12/31
Interactions with water are crucial for the properties, transformation and climate effects of atmospheric aerosols. Here we present a conceptual framework for the interaction of amorphous aerosol part...
Ecosystem effects of CO2 concentration：evidence from past climates
Ecosystem effects past climates CO2 concentration
2009/12/3
Atmospheric CO2 concentration has varied from minima of 170–200 ppm in glacials to maxima of 280–300 ppm in the recent interglacials. Photosynthesis by C3 plants is highly sensitive to CO2 concentrat...
Millennial-scale climatic variability between 340 000 and 270 000 years ago in SW Europe：evidence from a NW Iberian margin pollen sequence
climatic variability Marine Isotope Stage SW Europe
2009/12/3
We present a new high-resolution marine pollen record from NW Iberian margin sediments (core MD03-2697) covering the interval between 340 000 and 270 000 years ago, a time period centred on Marine I...
Paleolimnological evidence of the effects on lakes of energy and mass transfer from climate and humans
Paleolimnological evidence of the effects lakes of energy mass transfer climate and humans
2014/4/17
The premise of this article is that climate effects on lakes can be quantified most effectively by the integration of process-oriented limnological studies with paleolimnological research, particularl...