• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
National Geographic - u.arizona.edu
National Geographic - u.arizona.edu

... World Ocean Circulation Experiment, launched in 1990, has helped researchers to better understand what is now called the ocean conveyor belt (see page 66). Oceans, in effect, mimic some functions of the human circulatory system. Just as arteries carry oxygenated blood from the heart to the extremiti ...
Presentation - PDF version - NSTA Learning Center
Presentation - PDF version - NSTA Learning Center

... related to climate?  Greenhouse gases  Carbon dioxide (CO2)  Released from burning fossil fuels, from respiration, and volcanoes  Taken out of the atmosphere by plants during photosynthesis ...
Climate Change as a Driving Force for Evolution
Climate Change as a Driving Force for Evolution

... eukaryotic supergroups, which also implicated the invention of sexual reproduction and multicellularity. Sexual reproduction became possible with rising communication between the cells, for which cell-cell adhesion was one of the crucial steps. Multicellularity, possibly triggered by sexual reproduc ...
research news - Max-Planck-Institut für Meteorologie
research news - Max-Planck-Institut für Meteorologie

... Ice contains the air of the past in dissolved form or in tiny gas bubbles. Consequently, where ice has accumulated over thousands of years, climatologists can access an archive of historical greenhouse gas values. By analyzing the carbon dioxide content of Antarctic ice, scientists can see back up t ...
What Do You Think About Climate Change?
What Do You Think About Climate Change?

... Some scientists point out that global warming does not have to be caused by human activities. Global warming and global cooling happened over and over before people started burning fossil fuels. During the past few hundreds of thousands of years, there have been several ice ages, when much of Earth’ ...
Introduction - San Jose State University
Introduction - San Jose State University

... ‘good versus bad’, but are about how a system responds to a change. ...
The importance of the Arctic to global climate
The importance of the Arctic to global climate

... “Snow is not just H2O,” Maasch said, estimating that ice core analyses consider many major and minor elements. The Greenland ice cores, and many shorter records from around the world, definitively proved that Earth’s climate can shift quickly — with temperatures rising or dropping by dozens of degre ...
Climate Change Education for Physics Teachers
Climate Change Education for Physics Teachers

... studies have shown that people (mostly students or pupils) confuse greenhouse effect with ozone hole. To investigate the roots of this confusion we interviewed students at Masaryk University, Faculty of Education, who suppose to become physics teachers. The findings of our study were utilized to des ...
Assessing Earthquake Risks along the West African Coast in the
Assessing Earthquake Risks along the West African Coast in the

... Assessing Earthquake Risks along the West African Coast in the Present Climate Change Setting distribution of the weight on the aesthenosphere (Wooldridge and Morgan 1959). The reverse of this process is also true to the effect that any shift of weight on the aesthenosphere, amounts to the reductio ...
Southern Hemisphere intermediate water formation and the bi
Southern Hemisphere intermediate water formation and the bi

... of these findings, glacial AAIW records from other parts of the world ocean, such as the Indian Ocean, are required. To assess the millennial-scale changes in surface and intermediate waters in the northern Indian Ocean and their relation to the bipolar seesaw, we studied core NIOP 905 collected off ...
Food Security and Safety Thank you for inviting me to talk about food
Food Security and Safety Thank you for inviting me to talk about food

... civil conflict.” The G-7 recommended that “Integration begins at home: Make climate-fragility risks a central foreign policy priority.” One year ago, while giving the commencement address at the United States Coast Guard Academy, President Obama said, “…the best scientists in the world know that cl ...
What is Earth Science - EighthGrade
What is Earth Science - EighthGrade

... are close to Earth. Today, astronomers can use space probes and rovers to study and observe the sun and planets more closely. These instruments also allow astronomers to study planets and galaxies that are far away from earth. 5 Possible answer- The increased technology and industry has added more p ...
news and views
news and views

... effects of methane that escapes to the atmosphere remain a matter of debate. Other new work8 shows that, because of its much longer residence time in the ocean–atmosphere system, CO2 might be responsible for the formation of polar stratospheric clouds (whose insulating effects could explain the espe ...
Volcanoes and Igneous Activity Earth
Volcanoes and Igneous Activity Earth

... resources and cause more pollution per capita than poorer countries • Average American consumes 35x resources of the average Indian • I = P for less-developed countries – environmental problems more obvious ...
The Greenhouse Effect Lab
The Greenhouse Effect Lab

... The Sun powers Earth’s climate, radiating energy, to balance the absorbed incoming energy, the Earth must, radiate the same amount of energy back to space. Much of the thermal radiation emitted by the land and ocean is absorbed by the atmosphere, including clouds, and reradiated back to Earth. This ...
Greenhouse Effect Demo
Greenhouse Effect Demo

... The Sun powers Earth’s climate, radiating energy, to balance the absorbed incoming energy, the Earth must, radiate the same amount of energy back to space. Much of the thermal radiation emitted by the land and ocean is absorbed by the atmosphere, including clouds, and reradiated back to Earth. This ...
Consequences of Melting Glaciers
Consequences of Melting Glaciers

... sea ice does not? The glaciers are on land, not in the ocean. When they melt, water is added to the ocean. When icebergs break off the edges of a glacier, they fall into the ocean. This is like adding ice to a glass of water. • You might point out that floating ice sits partly above the water, and w ...
A glacier is a slow-moving, extended mass of ice
A glacier is a slow-moving, extended mass of ice

... For knowledge about long-term climate change, scientists look at glaciers a little more closely. Samples called ice cores are taken by drilling deep into a glacier or ice sheet. These samples contain trapped air bubbles that serve as time capsules, providing us with facts about the state of the eart ...
Summary: Rapid Climate Change
Summary: Rapid Climate Change

... 1. Climate has not always been similar to the present; in fact has rarely been like the present Holocene climate. ...
Himal South Asia, Oct 2009 - India Environment Portal | News
Himal South Asia, Oct 2009 - India Environment Portal | News

... As of this writing, the Gangotri glacier is a 30-km-long ice flow, part of the second-largest glacial catchment in the Himalaya, after the Siachen in the eastern Karakoram. The World Wild Fund for Nature (WWF) considers the Gangotri a ‘benchmark’ glacier proving that global warming is a reality. Th ...
Climate Change Lecture Notes
Climate Change Lecture Notes

... less common here than elsewhere. Another way to think about it: weather is what conditions are like a particular day, climate is what conditions are typically like over a season or a year. Which of the following are examples of climate? Which are example of weather? During January through March of 2 ...
Climate Change 2014 2015
Climate Change 2014 2015

... • Describe glacial and interglacial periods within an ice age. • Summarize the theory that best accounts for the ice ages. ...
Melting Glaciers in Antarctica
Melting Glaciers in Antarctica

... precipitation. No signs of actual temperature increases have been found in this part of Antarctica. However, in other parts of the continent---especially the Antarctic Peninsula, the northernmost portion of the continent---warming and ice loss are significant and rapid. There, ecologists are concern ...
UGRC 144_Session 7
UGRC 144_Session 7

... Lecturer: Dr. Patrick Asamoah Sakyi Department of Earth Science, UG ...
The Global Climate Change Lab
The Global Climate Change Lab

... warmest for both hemispheres and for both land and oceans surface temperatures. President Obama has also reported on the climate change statistics. In a speech given on June 25, 2013, he stated, “The 12 warmest years in recorded history have all come in the last 15 years. Last year, temperatures in ...
< 1 ... 10 11 12 13 14 15 16 17 18 ... 29 >

Snowball Earth

The Snowball Earth hypothesis posits that the Earth's surface became entirely or nearly entirely frozen at least once, sometime earlier than 650 Mya (million years ago). Proponents of the hypothesis argue that it best explains sedimentary deposits generally regarded as of glacial origin at tropical paleolatitudes, and other otherwise enigmatic features in the geological record. Opponents of the hypothesis contest the implications of the geological evidence for global glaciation, the geophysical feasibility of an ice- or slush-covered ocean, and the difficulty of escaping an all-frozen condition. A number of unanswered questions exist, including whether the Earth was a full snowball, or a ""slushball"" with a thin equatorial band of open (or seasonally open) water.The geological time frames under consideration come before the sudden appearance of multicellular life forms on Earth known as the Cambrian explosion, and the most recent snowball episode may have triggered the evolution of multi-cellular life on Earth. Another, much earlier and longer, snowball episode, the Huronian glaciation, which occurred 2400 to 2100 Mya may have been triggered by the first appearance of oxygen in the atmosphere, the ""Great Oxygenation Event.""
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report