In semi-arid regions, livestock populations, and therefore pastoralists, are extremely vulnerable to changes in the environment including alterations in climate and resource availability (Dinar et al. 2008).
How will crop landraces respond to alterations in climate?
This can happen if a population gets physically divided perhaps by an alteration in the climate making parts of its range uninhabitable.
For if Amy Hessl of West Virginia University and Neil Pederson of Columbia University are correct, it was an alteration in the climate that allowed Genghis Khan and his horde to conquer half of Eurasia.The great Khan rose to power in 1206, the year he united Mongolia's tribes behind him, and died in 1227.
As alterations in the climate lead to mass migrations, epidemics will spread; as temperate zones warm up, tropical diseases like malaria will surge; storms will overwhelm sewer systems; heat waves will push ozone levels up.He may be right, but here too economic growth, coupled with good governance, may yet prove to be a source of solutions rather than problems.
The earlier stages of forest fragmentation lead to changes in forest composition due to the transition of evergreen forests to a mix of semi evergreen and scrub forest patches leading to alterations in micro climate and habitat (Ramachandra et al. 2013).
No, climate change is not the cause of hurricanes — nor wildfires, nor tornadoes — but, as scientists have predicted for some time now, swift alterations in our climate are magnifying the force of these natural events.
Vulnerability of communities and individuals will vary depending on differences in climate alterations, distances, infrastructure, resources, etc. Climate change impacts on human health also vary between and within communities in the Arctic, and the examinations of gender relations illustrate the complexity of communities in the differences of perspectives that abound within and between them.
"In our own lifetime we are witnessing a startling alteration of climate".
We hypothesize that the climate-biota transmission mechanism is the following: the late 1980s changes in the Mediterranean circulation are due to an alteration in the northern hemisphere climate, which is the same alteration underlying the other reported European shifts, whose signature is seen in the NAO and in the NHT, and which we believe is likely to be found in other climate patterns.
This rate of change signifies a profound alteration of global climate, and in turn will radically alter agriculture, human occupation patterns and the distribution of the Earth's natural ecosystems.
