Global Warming

Image: NASA Ozone (O3) high in the atmosphere absorbs ultraviolet radiation from the sun, thereby protecting living organisms below from this dangerous radiation. The term ‘ozone hole’ refers to recent depletion of this protective layer over Earth s polar regions. People, plants, and animals living under…

If more energy enters the Earth than leaves, the planet will heat up. Stockbyte/Stockbyte/Getty Images by Contributing Writer Global warming refers to the recent pattern of temperature increases in the earth s atmosphere and oceans, attributed in part to human activity. The scientific evidence for global…

Global warming is primarily a problem of too much carbon dioxide in the atmosphere. This carbon overload is caused mainly when we burn fossil fuels like coal, oil and gas or cut down and burn forests. There are many heat-trapping gases (from methane to water vapor), but CO2 puts us at the greatest risk…

How do we know carbon dioxide concentrations have increased? The concentrations of carbon dioxide and other greenhouse gases in atmospheric samples have been measured continuously since the late 1950s. Since then, carbon dioxide concentrations have increased steadily from about 315 parts per million…

Spencer Platt /GettyA man and his dog contend with blowing snow in Brooklyn following a snow storm that left up to 8 inches of snow on January 3, 2014 in New York, United States. This past week has given climate change skeptics plenty of events that seem like reasons to dispute global warming: A ship…

The world is on track for dangerous climate change, having nearly lost room for further pollution in the mix of gases that make up the atmosphere. Despite a rise in clean, renewable energy supplies in certain countries, and a partial shift from coal to natural gas in others, global greenhouse gas pollution…

Do you believe that global warming is a real threat? If so, can you explain why? If not, can you explain why not? Most people have an opinion on the first question, but I ve found that relatively few can answer the followups. In other words, most Americans have opinions of global warming based on what…

Top polluter China today welcomed Brazil s pledge to reduce its greenhouse gas emissions by 37 per cent by 2025 from 2005 baseline level as part of its contribution to a pact to fight global warming. German giant Volkswagen`s worldwide pollution cheating scandal threatens to backfire on diesel, the fuel…

The city of New York — America s largest metropolis and home to over 8 million people — will be ravaged by the effects of climate change within a few years. That s the bleak scenario presented by a recent 430-page report developed by a blue-ribbon panel of academics, environmental planners and government…