Sentences with phrase «earth system impacts»

We still do not know what processes triggered hyperthermals, the source (s) of carbon released, and their wider Earth system impacts.

Modelling exercises can shed lights on the Earth System impacts of different farming systems and on the prospects for smallholder farming evolution under global societal and environmental change.

Not exact matches

«There is broad consensus that the further and the faster the Earth system is pushed towards warming, the greater the risk of unanticipated changes and impacts, some of which are potentially large and irreversible,» according to the report.

For those of you who've followed me on twitter @sfemerick or read my blog or book, The Most Powerful Brand on Earth, you know I believe the most successful brand advocates are those who gain visibility and trust by sharing their expertise, and the most successful brands are those who build systems around these experts to align and scale impact for the brand.

The impact aftermath killed most life on Earth, but the crater itself (bottom)-- shown with a central peak — remained hot long after the blast, perhaps creating a hydrothermal system similar to deep - sea vents.

Earth and the other planets of our solar system suffer occasional impacts when comets are disturbed from their orbits around the sun by the gravity of nearby stars and gas clouds.

Several large impact scars on the moon appear to be around 3.9 billion years old, suggesting that the Earth and other objects of the inner solar system were heavily pounded at that time.

He entered orbit not as a tourist but rather as a civilian astronaut whose to - do list included snapping nearly 500 pictures of Earth and participating in a series of experiments to test spaceflight's impact on his immune system, sleep patterns and eyes.

It was geologists who first noticed the evidence of huge impact craters on Earth that had formed long after the solar system settled into its present form, prompting biologists to speculate on whether those collisions dramatically altered life's evolution.

That will allow us to know more about the current architecture of the outer Solar System and the role of Jupiter in protecting the Earth from comparable impacts.»

The find should help astronomers determine how much dust in the solar system originates in asteroid collisions; such impacts may also create fragments that reach Earth as small meteorites.

«The Amazon rainforest is one of the tipping elements in the Earth system,» says lead - author Delphine Clara Zemp who conducted the study at the Potsdam Institute for Climate Impact Research, Germany.

Southwest Research Institute scientists posit a violent birth of the tiny Martian moons Phobos and Deimos, but on a much smaller scale than the giant impact thought to have resulted in the Earth - Moon system.

These maps, with more than 50,000 pixels, show surprisingly large local variation in trait values that could significantly impact future carbon cycle calculations produced by Earth System models (ESMs).

The researchers now want to continue developing a more advanced regional earth system model to improve the regional environmental impact assessment, and apply this not only to the Amazon region but also to other parts of the world.

According to Minchao Wu, regional earth system models are an important tool for assessing the impact of regional environmental changes.

Therefore, according to the researchers, it has so far been difficult to pinpoint the effects, but the new - generation regional earth system models now enable such an impact study to be performed.

«For the first time, space weather forecasters now have models and tools for predicting how a CME is released from the sun, accelerated out into the solar wind, and ultimately ends up colliding with Earth's magnetosphere creating the geomagnetic storms that impact so many technologies and systems,» says Rodney Viereck of the National Oceanic and Atmospheric Administration's (NOAA) Space Environment Center.

The results will be important for assessing the likelihood of comets impacting our solar system's planets, including Earth.

James Balog, who founded Extreme Ice Survey that uses photography and videography to document the impact of climate change on glaciers — work that was the basis of his 2012 documentary «Chasing Ice» — said his work shows how human activities are transforming Earth's systems.

Alastair Cameron, now at the University of Arizona, and William Ward, now at the Southwest Research Institute, were proposing that a giant impact could have created the angular momentum of the early Earth - moon system.

«He has pushed forward the frontier of our knowledge of Earth's climate system and of the impacts that humanity is having on Earth's climate,» Nicholas E. White, director of the Sciences and Exploration Directorate at Goddard, said in a statement.

The giant - impact theory can account for the high angular momentum of the Earth - moon system, which is greater than that of any known planet - satellite system.

«Prior to approximately four billion years ago, no large region of Earth's surface could have survived untouched by impacts and their effects,» says Simone Marchi, of NASA's Solar System Exploration Research Virtual Institute at the Southwest Research Institute.

This also has a strong impact on how nitrogen fertilizes ecosystems, which is important to understanding how the earth's systems respond to pollution.»

The slow impact velocity of previous models requires it to have originated from an orbit very near Earth, while the new model allows for an origin from more far - flung parts of the solar system, researchers report in an upcoming issue of Icarus.

«These new results imply the current - day impact rates for small particles at Saturn are about the same as those at Earth — two very different neighborhoods in our solar system — and this is exciting to see,» said Linda Spilker, Cassini project scientist at NASA's Jet Propulsion Laboratory in Pasadena, Calif. «It took Saturn's rings acting like a giant meteoroid detector — 100 times the surface area of the Earth — and Cassini's long - term tour of the Saturn system to address this question.»

«A forest die - off over a large area like the Amazon Basin, could have a major impact on Earth's system as a whole,» said Berry.

«We've been trying to figure out how to pull people together and look at numbers to understand impacts,» said Susan Brantley, distinguished professor of geosciences and director of the Earth and Environmental Systems Institute at Penn State.

The biggest concern: that the Accelerated Climate Modeling for Energy (ACME) project, meant to forecast local impacts of climate change and to be used on DOE's future exascale supercomputers, would dilute resources from the Community Earth System Model (CESM).

An authority on high - energy solar physics, her research investigated the acceleration and impact of nuclei during solar flares, which affect power transmission systems on Earth.

A new integrated climate model developed by Oak Ridge National Laboratory and other institutions is designed to reduce uncertainties in future climate predictions as it bridges Earth systems with energy and economic models and large - scale human impact data.

A new integrated computational climate model developed to reduce uncertainties in future climate predictions marks the first successful attempt to bridge Earth systems with energy and economic models and large - scale human impact data.

When earth was first formed with, you know, giant pieces of rock smashing, you know, impacting together, they were maybe 200 or so minerals created through the formation of the solar system and so on.

To inform its Earth system models, the climate modeling community has a long history of using integrated assessment models — frameworks for describing humanity's impact on Earth, including the source of global greenhouse gases, land use and land cover change, and other resource - related drivers of anthropogenic climate change.

By drilling into a circular ridge inside the 180 - kilometer - wide crater rim, researchers also hope to nail down the processes that form «peak rings»: hallmarks of the largest impact craters, which planetary scientists have seen elsewhere in the solar system but which erosion has erased from other big craters on Earth.

«The results clearly showed that modest amounts of climate change can have a big impact on yields of several crops in Europe,» said Stanford doctoral student Frances Moore, who conducted the research with David Lobell, an associate professor of environmental Earth system science.

«The model we propose is the least restrictive impact scenario,» Canup says, «since it involves only a single impact and requires little or no modification of the Earth - Moon system after the Moon - forming event.»

Revkin is among those credited with developing the idea that humans, through growing impacts on Earth's climate and other critical systems, had created a «geological age of our own making,» known increasingly as the Anthropocene.

As impact glass is a ubiquitous substrate on rocky bodies throughout the Solar System and likely common on the early Earth, the preservation of biological activity in impact glass has significant astrobiological implications for life on early Earth as well as for the search for life on other planets.

April 23, 2018 - A new earth modeling system unveiled today will have weather - scale resolution and use advanced computers to simulate aspects of Earth's variability and anticipate decadal changes that will critically impact the U.S. energy sector in coming yearth modeling system unveiled today will have weather - scale resolution and use advanced computers to simulate aspects of Earth's variability and anticipate decadal changes that will critically impact the U.S. energy sector in coming yEarth's variability and anticipate decadal changes that will critically impact the U.S. energy sector in coming years.

Lecture 7 of Dr. Bruce Betts» 2015 online Introductory Planetary Science and Astronomy course covers asteroid Ceres, the near Earth asteroid threat to Earth (including statistics, past impacts, and information on the Chelyabinsk fireball), and introduces the Jupiter system.

We are witnessing a time when the human impact on the earth system is growing exponentially, spawning the proposed naming of a new geological era, where the earth system is under the influence of the human race: the Anthropocene, of «the Age of Man» (and Woman).

The international science on global environmental change, which has provided the insights we have today on the functioning of the Earth system and impacts on human societies of anthropogenic change, has triggered a concerted global effort, integrating the ICSU / ISSC Visioning process on the Grand Challenges for Earth system research for global sustainability with the Belmont Forum challenge (a coalition of major donors of global environmental change research), to define the future integrated science agenda on Earth system research for global sustainability.

Stefan Rahmstorf is Head of Earth System Analysis at the Potsdam Institute for Climate Impact Research.

The work is done with close collaboration with the Climate System Modeling and Greenhouse Gases groups as well as the Space and Earth Observation Centre and Weather and Climate Change Impact Research and Meteorological Research units.

The consensus is that several factors are important: atmospheric composition (the concentrations of carbon dioxide, methane); changes in the Earth's orbit around the Sun known as Milankovitch cycles (and possibly the Sun's orbit around the galaxy); the motion of tectonic plates resulting in changes in the relative location and amount of continental and oceanic crust on the Earth's surface, which could affect wind and ocean currents; variations in solar output; the orbital dynamics of the Earth - Moon system; and the impact of relatively large meteorites, and volcanism including eruptions of supervolcanoes.

Within the integrated Earth system science paradigm, our major research thrusts include the physics and chemistry of aerosols, clouds and precipitation; integrating our understanding of climate, energy, and other human and natural systems through the development and application of models that span a wide range of spatial scales; and determining the impacts of and informing responses to climate and other global and regional environmental changes.

Any Earth - type planet orbiting Tau Ceti would experience more cometary and asteroidal impacts than in the Solar System today, as imagined by Hardy (more).

Prof Stefan Rahmstorf Head of Earth systems analysis Potsdam Institute for Climate Impact Research