Global change is triggering an identity switch in grasslands

Since the first Homo sapiens emerged in Africa roughly 300,000 years ago, grasslands have sustained humanity and thousands of other species. But today, those grasslands are shifting beneath our feet. Global change—which ...

Three benefits of Indonesia's permanent ban on forest clearance

Five years ago, Indonesia was considered one of the world's worst forest destroyers. But a permanent moratorium on new clearance of primary forest and peatland, recently announced by Presiden Joko "Jokowi" Widodo's administration, ...

Australia offers climate funding to Pacific islands

Australia announced a Aus$500 million ($340 million) climate change package for Pacific countries Tuesday but received a lukewarm response from low-lying island nations demanding urgent action from their powerful neighbour ...

UN climate report: Change land use to avoid a hungry future

Human-caused climate change is dramatically degrading the Earth's land and the way people use the land is making global warming worse, a new United Nations scientific report says. That creates a vicious cycle which is already ...

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Climate change

Climate change is any long-term change in the statistics of weather over periods of time that range from decades to millions of years. It can express itself as a change in the mean weather conditions, the probability of extreme conditions, or in any other part of the statistical distribution of weather. Climate change may occur in a specific region, or across the whole Earth.

In recent usage, especially in the context of environmental policy, climate change usually refers to changes in modern climate (see global warming). For information on temperature measurements over various periods, and the data sources available, see temperature record. For attribution of climate change over the past century, see attribution of recent climate change.

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