搜索结果: 1-11 共查到“地球科学总论 not if”相关记录11条 . 查询时间(0.171 秒)
Huge volcanic eruption disrupted climate but not human evolution
volcanic eruption climate disruption human evolution
2021/8/3
A massive volcanic eruption in Indonesia about 74,000 years ago likely caused severe climate disruption in many areas of the globe, but early human populations were sheltered from the worst effects, a...
Pandemic air quality due to weather, not just lockdowns ,study finds
meteorological pandemic air PM 2.5
2021/8/4
New research from Martin's lab, in collaboration with the Goddard Space Flight Center, California Institute of Technology and Dalhousie University in Nova Scotia, mapped PM2.5 levels across China, Eur...
Banded Iron Formations (BIFs) and Associated Sediments Do Not Reflect the Physical and Chemical Properties of Early Precambrian Seas
Early Precambrian BIF Non-Marine Polar Regions
2013/3/7
Ring-in-ring structures in Australian Early Precambrian banded iron formation (BIF) were identified as bubbling mud wavelets, which lithified during temporary exposure, contradicting the alleged BIF d...
Effects of ultraviolet B radiation on (not so) transparent exopolymer particles
ultraviolet B radiation transparent exopolymer particles
2010/1/21
Transparent exopolymer particles (TEP) are the most ubiquitous gel particles in the ocean and form abiotically from dissolved precursors. Although these particles can accumulate at the ocean surface, ...
Near-future levels of ocean acidification do not affect sperm motility and fertilization kinetics in the oyster Crassostrea gigas
Near-future levels ocean acidification sperm motility and fertilization kinetics the oyster Crassostrea gigas
2010/1/21
An increasing number of studies are now reporting the effects of ocean acidification on a broad range of marine species, processes and systems. Many of these are investigating the sensitive early life...
A re-assessment of the 31st of August 1819 Lurøy earthquake–Not the largest in NW Europe
re-assessment 31st of August 1819 Lurø y earthquake NW Europe
2009/12/3
The Lurøy earthquake of the 31st of August 1819, with magnitude MS = 5.8 – 6.2, is claimed to be the largest in Norway and NW Europe in 'historic' times.We present a re-evaluation of the macros...
Stalled Economy or Not, Record Year for CO2 Emissions--People Still Consumed More Per Capita in 2008（图）
Stalled Economy Record Year CO2 Emissions
2009/12/10
Each person on the planet produced 1.3 tons of carbon last year—an all-time high--despite a global recession that slowed the growth of fossil fuel emissions for the first time this decade, according t...
Risks Cloud Financing for Curbing Climate Change--Policies Uncertain and May Not Stop Warming, Says Study（图）
Risks Cloud Financing Climate Change Policies
2009/12/10
A new comprehensive analysis of global market and policies aimed at stemming climate change says that even if all current or proposed major policies take maximum effect, they will be insufficient to a...
Effects of diurnal warming on soil respiration are not equal to the summed effects of day and night warming in a temperate steppe
diurnal warming soil respiration summed effects day and night warming temperate steppe
2010/1/20
The magnitude of daily minimum temperature increase is greater than that of daily maximum temperature increase under climate warming. This study was conducted to examine whether changes in soil respir...
Mineral fertilization did not affect decay of old lignin and SOC in a 13C-labeled arable soil over 36 years
Mineral fertilization decay lignin SOC 13C-labeled arable soil
2010/1/20
Retardation of soil organic carbon (SOC) decay after nitrogen addition to litter or soil has been suggested in several recent studies and has been attributed to a retardation in lignin decay. With our...
Fluorescent pseudomonads isolated from Hebridean cloud and rain water produce biosurfactants but do not cause ice nucleation
Fluorescent pseudomonads Hebridean cloud rain water biosurfactants ice nucleation
2010/1/14
Microorganisms were discovered in clouds over 100 years ago but information on bacterial community structure and function is limited. Clouds may not only be a niche within which bacteria could thrive ...