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Climate change is a change in the statistical distribution of weather patterns when that change lasts for an extended period of time . Climate change may refer to a change in average weather conditions, or in the time variation of weather around longer-term average conditions . Climate change is caused by factors such as biotic processes, variations in solar radiation received by Earth, plate tectonics, and volcanic eruptions. Certain human activities have also been identified as significant causes of recent climate change, often referred to as global warming.

Climate change is a change in the statistical distribution of weather patterns when that change lasts for an extended period of time (i.e., decades to millions of years). Climate change may refer to a change in average weather conditions, or in the time variation of weather around longer-term average conditions (i.e., more or fewer extreme weather events). Climate change is caused by factors such as biotic processes, variations in solar radiation received by Earth, plate tectonics, and volcanic eruptions. Certain human activities have also been identified as significant causes of recent climate change, often referred to as global warming.

Scientists actively work to understand past and future climate by using observations and theoretical models. A climate record—extending deep into the Earth's past—has been assembled, and continues to be built up, based on geological evidence from borehole temperature profiles, cores removed from deep accumulations of ice, floral and faunal records, glacial and periglacial processes, stable-isotope and other analyses of sediment layers, and records of past sea levels. More recent data are provided by the instrumental record. General circulation models, based on the physical sciences, are often used in theoretical approaches to match past climate data, make future projections, and link causes and effects in climate change.

Bill Gates: Stop cow farts to help slow climate change

Microsoft co-founder Bill Gates tells CNN's Fareed Zakaria that bovine flatulence is a large contributor to global warming and no one knows exactly how to limit ...

NASA Administrator On Climate Change, Humans On Mars, And Aliens | Velshi & Ruhle | MSNBC

Watch NASA Administrator Jim Bridenstine join Ali Velshi to talk climate change, humans on Mars, and how much federal money the United States is spending ...

Climate change: the inter-generational challenge - BBC Newsnight

Is climate change becoming the big inter-generational battle of our time? Subscribe to our channel here: https://goo.gl/31Q53F Polling from the UK and the US ...

Jaboukie Young-White Makes the Case for Climate Change “Preparations” | The Daily Show

If older generations aren't going to help in the fight against climate change, Jaboukie Young-White thinks they should at least have to pay young people for their ...

School strike against climate change - BBC London

School children went "on strike" as part of a global campaign for action on climate change. Video by Jamie Moreland. Subscribe to BBC London here: ...

School children go on strike over climate change

Thousands of schoolchildren and young people around the world have ditched the classroom to protest about climate change. Sky's Thomas Moore hears why ...