Sentences with phrase «current earth history»
Paul Crutzen, the Nobel laureate in chemistry who, with others, proposed the term in 2000, and Christian Schwägerl, the author of «The Age of Man» (German), described the value of this new framing for current Earth history in January in Yale Environment 360:
https://dotearth.blogs.nytimes.com/ Not exact matches
The pre-eminent American science journalist, Gleick herein explores the history and effects of knowledge communication between humans, drawing a link from African talking drums and the earliest alphabets through the telegraph — once «a nervous system for the Earth» — to Wikipedia and Twitter, and the current state of information overload from which so many claim to suffer.
«Many will come in the Last Days, and say Lord Lord I did this and that for you, and Jesus will say, I never knew you» has never been more evident in this current period of history... Ironic, Jesus» works on this Earth were quite liberal, cleaning the feet of a harlot, etc...
Over the course of the Earth's four billion year history, billions of other species have evolved into existence and been rendered extinct by compet - itors or natural disasters, well before the current cast of characters appeared.
The current climate is influenced by processes that go far back into the history of Earth: the Greenland lithosphere is 2.8 to 1.7 billion years old and is only about 70 to 80 kilometers thick under Central Greenland.
The results, published July 30 in Nature, provide insights into the moon's early history, its orbital evolution, and its current orientation in the sky, according to lead author Ian Garrick - Bethell, assistant professor of Earth and planetary sciences at UC Santa Cruz.
The reason for this was growing evidence of abrupt climate changes in the history of the Earth due to instability of Atlantic currents.
The crew is chiefly concerned with the dilemma of whether or not to continue the current history of Earth's humanity by repopulating Earth's inhabitants on a new planet (Plan A), or seeding a colony of new humans fertilized from genetic material on the ship (Plan B), effectively losing our human history but ensuring mankind's technical survival.
With the museum of scotland, Dynamic Earth and the scottish Parliament building close by student groups can learn all about Edinburgh's fascinating history, Current economics and enjoy the many tourist attractions to make a very memorable trip.
At least to me, it appears that the current, huge scale (6.6 billion people) and projected growth (to 9.2 billion people by 2050) of the human family could reach a point in history when the human species becomes unsustainable on a planet with the size and make - up of Earth.
When reconstructing Earth's climate history, it can't be explained without including all the various influences, including solar irradiance, volcanism, albedo, orbital variations, continental drift, mountain building, variations in sea currents, changes in greenhouse gases, even cometary impacts.
Zero: the number of periods of Earth's history during which climate records show carbon dioxide rose as rapidly and as much as projected under current «businesses as usual» scenarios.
However, when we look back over the Earth's history, we see many periods where CO2 is higher than current levels of 384 ppm.
I am disputing, based on reading credible scientists and looking at Earth history, the idea that CO2 is an agent of doom at current or realistically attainable levels in the future.
- Notice, during the current cold phase, there has been permanent ice caps in Antarctica for only 10 million years and at the North Pole for less than 5 million years (demonstrating that ice caps are a rare event in Earth's history, which shows we are in a cold phase)- Notice that the planet has had no ice caps — therefore it has been much warmer than now — for about 80 % of the past 500 million years.
For example, the current levels of atmospheric CO2 is at about the lowest level in the geological history of the Earth.
However, over long time periods, the variation of the global average temperature with CO2 concentration depends on various factors such as the placement of the continents on Earth, the functionality of ocean currents, the past history of the climate, the orientation of the Earth's orbit relative to the Sun, the luminosity of the Sun, the presence of aerosols in the atmosphere, volcanic action, land clearing, biological evolution, etc..
Earth scientists now know that the history of our planet has been set for some time in our current geological age, the Anthropocene.
The current rate of environmental change is much faster than most climate changes in the Earth's history, so predictions from longer term geological records may not be applicable if the changes occur within a few generations of a species.
More likely, Earth's continuing decline in atmospheric temperatures will resume after the current minor rising blip is over, just as the Sun, our source of heat and light, is signaling and consistent with the continuing cooling of Earth through a significant portion of its long history.
If you haven't heard the word «Anthropocene» before, it is a recently - coined name for the current period in Earth's history, when human actions are having a planet - scale impact.
In 2013, he returned to Oxford where much of his current research aims to document and understand past climate variability, particularly during exceptionally warm intervals of Earth history, such as the Cretaceous.
Well - documented climate changes during the history of Earth, especially the changes between the last major ice age (20,000 years ago) and the current warm period, imply that the climate sensitivity is near the 3 °C value.
The climate history of Earth during the glacial - interglacial cycles of the last 1 million years provides an essential context for an understanding of current climate changes, including the relations between solar irradiance, greenhouse gas (GHG) forcing, albedo changes and global temperatures.
Earth's past history is sending us a strong message - current CO2 levels are not safe.