They do this by a really simple 'process' known as Observation; this involves measurement of parameters over Time and many Calculations.
The scientists observe the changes in climate very carefully. They know that the daily changes in climate are caused by storms and fair weather moving over the Earth . They know that the seasoning changes are due to the turning of Earth around the sun.The most important cause of climate is the heating and cooling of the air.
Scientists study seismic waves to learn about the temperature inside the Earth's crust. By analyzing the speed and direction of these waves as they travel through different layers of the Earth, scientists can infer information about the temperature and composition of the Earth's crust.
the adaptations of species shown in the fossil record gives an idea to what their surrounding were like.scientists study fossils to learn about climates long ago. If a plant fossil looks like a modern plant , sicentist guess two plants need the same climate.
Tree rings and ice cores provide valuable information about past climate conditions. Tree rings can show annual growth patterns which are influenced by factors like temperature and precipitation, while ice cores contain air bubbles and particles that can reveal past atmospheric composition and temperatures. By analyzing these samples, scientists can reconstruct past environmental conditions and study how the Earth's climate has changed over time.
Scientists measure the movements and changes in glaciers to better understand how they respond to environmental factors like temperature and precipitation, to monitor their contribution to sea level rise, and to assess potential hazards such as glacier-related floods and landslides. These measurements help scientists track the impact of climate change on glaciers and glaciers' impact on the environment.
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Because of the study of seismic waves from earthquakes
they take plants and animals to the lab and experiment
Scientists can measure that the global temperature is rising. They know that rising temperatures will change the climate. Weather happens from day to day, but climate change takes longer, several years, or several decades before it becomes clear that it is happening. That is the situation now. Scientists know that rising temperatures will change the climate.
Fossil Succession
The scientists observe the changes in climate very carefully. They know that the daily changes in climate are caused by storms and fair weather moving over the Earth . They know that the seasoning changes are due to the turning of Earth around the sun.The most important cause of climate is the heating and cooling of the air.
I believe the vast majority of climate scientists who know what they are talking about. Every Scientific Academy in the developed world agrees with them too. The critics who say it is a huge fraud are not peer-reviewed climate scientists..
Scientists don't know for sure. They speculate climate change, an ice age or natural disaster.
Scientists use evidence from the fossil record, comparative anatomy, DNA analysis, and observations of natural selection to understand how organisms have changed over time. By studying these pieces of evidence, scientists can track the gradual changes in species over generations, providing strong support for the theory of evolution.
Scientists do not know for certain why mammoths died out. Theories include climate change leading to habitat loss or overhunting from humans.
An independent study of all the scientists who published literature on climate change was made by William Anderegg in 2010. It found that between 97% and 98% of these scientists agreed with the statement that global warming is being caused by human activity.A survey by Doran in 2009 of 3146 earth scientists found that 97.4% of those who had published on climate change agreed.Scientists need to back up their experiments by publishing the data so that other scientists can check. A survey (by Oreskes in 2004) of all the peer-reviewed abstracts published between 1993 and 2003 found that none of them rejected the consensus (that man is causing global warming).
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