Climate change

There is little doubt among climatologists that these greenhouse gases affect the radiation budget of Earth; the nature and magnitude of the climatic response are a subject of intense research activity.

Malaria is strongly influenced by climate.

Climate change and health

Within strict geographic contextsthese sources can provide information on frostsdroughts, floods, sea ice, the dates of monsoonsand other climatic features—in some cases up to several hundred years ago. Without drastic action today, adapting to these impacts in the future will be more difficult and costly.

The extent to which these factors contribute to recent and ongoing climate change is an important, emerging area of study.


Climate change example, the uplift of the Tibetan Plateau during the Cenozoic Era affected atmospheric circulation patterns, creating the South Asian monsoon and influencing climate over much of the rest of Asia and neighbouring regions.

High temperatures also raise the levels of ozone and other pollutants in the air that exacerbate cardiovascular and respiratory disease. Atlantic Periodwarm and wet Bottom: Some studies point toward solar radiation increases from cyclical sunspot activity affecting global warming, and climate may be influenced by the sum of all effects solar variation, anthropogenic radiative forcingsetc.

In any case, economists agree that acting to reduce fossil fuel emissions would be far less expensive than dealing with the consequences of not doing so.

These natural archives, often referred to as proxy evidence, are extraordinarily diverse; they include, but are not limited to, fossil records of past plant and animal distributions, sedimentary and geochemical indicators of former conditions of oceans and continents, and land surface features characteristic of past climates.

Variability in temperature, precipitation, and englacial and subglacial hydrology can strongly determine the evolution of a glacier in a particular season. Upon seawater temperature change, the solubility of CO2 in the oceans changed, as well as other factors affecting air-sea CO2 exchange.

While much remains to be learned, the core phenomenon, scientific questions, and hypotheses have been examined thoroughly and have stood firm in the face of serious scientific debate and careful evaluation of alternative explanations. Radiative energy from the Sun is variable at very small timescales, owing to solar storms and other disturbances, but variations in solar activity, particularly the frequency of sunspotsare also documented at decadal to millennial timescales and probably occur at longer timescales as well.

A recent example of tectonic control on ocean circulation is the formation of the Isthmus of Panama about 5 million years ago, which shut off direct mixing between the Atlantic and Pacific Oceans.

Increasingly variable rainfall patterns are likely to affect the supply of fresh water.

What is climate change?

Many of the causes of climate change are external to the Earth system. The World Glacier Monitoring Service collects data annually on glacier retreat and glacier mass balance.

Climate change

The period of extraordinarily few sunspots in the late 17th century was the Maunder minimum. Sea level change Main articles: The locations of the seas are important in controlling the transfer of heat and moisture across the globe, and therefore, in determining global climate. Global climate change has already had observable effects on the environment.

In climate modelling the aim is to study the physical mechanisms and feedbacks of volcanic forcing.Report: climate change a growing target of false news stories. A report from Axios says climate change is a growing target for false news stories.

Amy Harder, an energy and climate change reporter, joins CBSN to discuss what's behind the rise.

Climate Change

12 days ago · Climate Change Drives Bigger, Wetter Storms — Storms Like Florence Hurricane Florence — large, slow and full of moisture — is threatening to inundate the Southeast. It's a type of storm that. Nov 14,  · Democracy Now! has long covered the issue of climate change.

We reported from the U.N. Climate Change Conferences in Paris, Lima, Warsaw, Doha, Durban, Cancún, and Copenhagen, and from Bolivia. Climate change deniers often claim that recent changes attributed to human activity can be seen as part of the natural variations in Earth’s climate and temperature, and that it is difficult or impossible to establish a direct connection between climate change and any single weather event, such as a hurricane.

Climate change, periodic modification of Earth’s climate brought about as a result of changes in the atmosphere as well as interactions between the atmosphere and various other geologic, chemical, biological, and geographic factors within the Earth system.

Data Protection Choices

The atmosphere is a dynamic fluid that is continually in motion. NOAA is a source of timely and authoritative scientific data and information about climate. Our goals are to promote public understanding of climate science and climate-related events, to make our data products and services easy to access and use, to provide climate-related support to the private sector and the Nation’s economy, and to serve people making.

Climate change
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