The nature of the last universal common ancestor (LUCA), its age and its impact on the Earth system have been the subject of vigorous debate across diverse disciplines, often based on disparate data and methods. Age estimates for LUCA are usually based on the fossil record, varying with ...
One of the most dramatic perturbations to the Earth system during the past 100 million years was the rapid onset of Antarctic glaciation near the Eocene/Ol... A Merico,T Tyrrell,PA Wilson - 《Nature》 被引量: 140发表: 2008年 Quantified abundance of magnetofossils at the Paleocene–Eocene bo...
system, goods are allocated by the price mechanism. In a free market, the price of a good is determined by the demand for, and supply of, the good. Price is therefore a reflection of society's willingness to pay for, or the valuation it places on, the good in question. However, the...
These show a high sensitivity of the carbon cycle impact to the land use reconstruction used and that factorial forcing experiments would be required to conclusively determine the impact of the 1492 CE land use change. To better understand the Earth system response to large scale tropical forest ...
Aerosol Effects on Mesoscale Convective Systems: Can Urban Regions Affect Severe Weather? Aerosols affect the climate system via directly reflecting or absorbing incoming or outgoing short or long-wave radiation, or by affecting cloud albedo and precipitation processes. In this dissertation, I focus on...
However, we can reduce the effect of the earthquake to an extent by taking some precautionary measure and an effective disaster management system. Comment below if you have faced any earthquake and how you come out of the situation. And what should we do to control the causes of earthquake....
Dryland agricultural system is under threat due to climate extremes and unsustainable management. Understanding of climate change impact is important to design adaptation options for dry land agricultural systems. Thus, the present review was conducted with the objectives to identify gaps and suggest tech...
The Earth’s climate system is a complex interaction of a number of components, such as the ocean, atmosphere, ice masses (cryosphere) and living organisms (biosphere). Although the system is ultimately driven by solar energy, changes to any of the components, and how they interact with each...
Anthropogenic threats, such as collisions with man-made structures, vehicles, poisoning and predation by domestic pets, combine to kill billions of wildlife annually. Free-ranging domestic cats have been introduced globally and have contributed to multiple wildlife extinctions on islands. The magnitude ...
Integration of the soil and water assessment tool with the information system in watersheds modeling Geographic Information Systems have become indispensable tools for watershed-scale hydrologic analysis and modeling. The integrative capabilities of GIS ca... WM Khairy,AP Hannoura,TL Coleman - Proceeding...