Global Cenozoic Paleobathymetry with a focus on the Northern Hemisphere Oceanic Gateways

THE DEGLACIATION OF THE NORTHERN HEMISPHERE: A Global Perspective

Orbitally induced increase in northern summer insolation after growth of a large ice sheet triggered deglaciation and associated global warming. Ice-albedo, sealevel, and greenhouse-gas feedbacks, together with tropical warming from weakening winds in response to polar amplification of warming, caused regionalto-global (near-) synchronization of deglaciation. Effects were larger at orbital rath...

Northern Hemisphere Ice-Sheet Influences on Global Climate Change

Large ice sheets actively interact with the rest of the climate system by amplifying, pacing, and potentially driving global climate change over several time scales. Direct and indirect influences of ice sheets on climate cause changes in ocean surface temperatures, ocean circulation, continental water balance, vegetation, and landsurface albedo, which in turn cause additional feedbacks in the ...

focus on communication in iranian high school language classes: a study of the role of teaching materials in changing the focus onto communication in language classes

چکیده ارتباط در کلاس به عوامل زیادی از جمله معلمان، دانش آموزان، برنامه های درسی و از همه مهم تر، مواد آموزشی وابسته است. در تدریس ارتباطی زبان که تاکید زیادی بر توانش ارتباطی دارد، کتاب درسی به عنوان عامل موثر بر پویایی کلاس محسوب میگردد که درس ها را از طریق فراهم آوردن متن ارتباط کلاسی و هم چنین نوع تمرین زبانی که دانش آموزان در طول فعالیت های کلاسی به آن مشغول اند، کنترل می کند. این حقیقت ک...

Impacts of climate change on air pollution levels in the Northern Hemisphere with special focus on Europe and the Arctic

Global Warming and Northern Hemisphere Sea Ice Extent.

Surface and satellite-based observations show a decrease in Northern Hemisphere sea ice extent during the past 46 years. A comparison of these trends to control and transient integrations (forced by observed greenhouse gases and tropospheric sulfate aerosols) from the Geophysical Fluid Dynamics Laboratory and Hadley Centre climate models reveals that the observed decrease in Northern Hemisphere...