Last Glacial Maximum

I would like to draw on three main points during my testimony. Number one, in order for ocean fertilization to work as a part of a larger climate mitigation strategy unrealistic conditions must be met. Number two, currently the scientific community is highly uncertain about the carbon mitigation and storage potential of iron fertilization. Number three, there exist unforeseen environmental and social impacts of large scale ocean fertilization. Taken together, these points highlight significant inadequacies

A BRIEF HISTORY OF IRELAND The beginning of Ireland consisted of ice. Glacial sheets during 16,000 cal BP pervaded across the land, making occupation nearly impossible. It was not until 13,000 cal BP that humans began settling in other parts of Europe (Dowd 2016, 158). Archaeologists have found evidence of Paleolithic settlements around modern Wales, West Scotland, Scandinavia, and Iberia around the same time. It is likely, however, for hunters to have visited Britain only for a few months in order

130,000 years of palaeoenvironmental and palaeoclimatic change in East Africa: An evaluation of the status of our understanding Over the last two decades, there has been intensive work undertaken to understand African palaeoclimates, in order to put together a more coherent picture of how the environment and climate have varied in the past. East Africa is of particular interest with the debates surrounding the “out-of-Africa” migrations of anatomically modern humans (e.g. Appenzellar, 2012; Armitage

The Americas are the most recently human populated continents on the planet, at around 15,000 years before present. The Asian ancestors of Native Americans crossed over a land bridge, connecting Asia to North America, during the earths last glacial maximum in the late Pleistocene (Dennis et al., 2010). Native American population history and genetics are still very new subjects of research and there is still much debate over questions such as: What routes were taken by the migrating Native American

Ancient Penguin Discoveries and Evolution In a recent BBC News article, Ivan Noble discusses the possibility that ancient penguins may hold the key to unlocking the mysteries behind the complicated molecular clock of evolution. Although a seemingly unlikely animal to research, prehistoric penguin remains in the Antarctic often have been the basis for study, research, as well as debate in the modern science world. Because the prehistoric relatives of the cute and cuddly modern day

Have you ever wondered what could possibly be causing the change in our temperature? This essay delves into the meaning of climate change along with the human and natural processes that alter the globes atmospheric temperatures over a long period of time. It includes various mechanisms and feedbacks, the history of climatic change, human roles/impacts, as well as my own position on the subject. Natural Climate Change The focus of this section is to explore natural climate change- which occurs

Kendra McKoy 11/11/14 Paleoceanography Draft 1 A brief review of Marine Isotope stages Introduction The creation of marine isotope stages we know today was a carminative effort between several scientists and research institutions across decades. It first started with Cesare Emiliani who transferred to the University of Miami’s Institute of Marine Science in 1957. Emiliani had been investigating the cause and nature of Quaternary glaciations by examining foraminifera fossils from the marine sedimentary

ge-intermediate.htm Last viewed:2/10/15 A few centuries ago there was a Mini ice age dubbed little ice age. Some believed major contributors-large volcanic eruption and ‘lower solar output’(less solar activity). Solar activity has been rapidly decreasing (2009 lowest in a century). More CO2, less insulation needed to drop. 2009 is the lowest solar activity level in over 100 years. It would take 2.6 million years for the world to enter an interglacial period and to reach a glacial trigger. The glaciation

up to 3 billion people rely on the food and energy produced using the Himalayan watershed (1). The glaciers in the Himalayas deliver large quantities of runoff to the major tributaries of the Ganges and the rivers in the adjacent basins (2). These glacial resources are essential to the water supply both in the uplands and lowlands for irrigation, hydroelectric power and agriculture and household use. The flows of the Himalayan watershed are affected by the precipitation and the melting of snow and

Corals: Indicators of the Changing Sea Throughout the 4.5 billion years of its existence, Earth’s climate has oscillated between episodes of cold and warmth during different periods in its history. Earth has experienced periods of ice ages where continental-sized glaciers covered the planet. During Earth’s warmest periods, the polar regions of the world today were completely ice free. Though there were no humans on Earth billions of years ago to describe these dramatic climate variations, Earth