Call on our leaders to introduce stronger laws to stop excessive tree-clearing. Animals, particularly livestock like sheep and cattle , produce methane, a greenhouse gas. When livestock are grazed at a large scale, as in Australia, the amount of methane produced is a big contributor to global warming.
Some fertilisers that farmers use also release nitrous oxide, which is another greenhouse gas. Use different stock feeds can help to reduce farming's contribution to climate change. Find out more One click is all it takes to be a part of our mission to Regenerate Australia.
Sign up now! Calculate your ecological footprint and find out how you can contribute to the conservation of the environment with WWF Australia. Visit Us today! We acknowledge the Traditional Custodians, whose land we work upon and we pay our respects to their Elders past, present and emerging.
GISS climate models. Climate Time Machine. Video: Global warming from to NASA visualization of future global temperature projections based on current climate models. Visualization comparing s and s. NASA visualizations of future precipitation scenarios. Precipitation Measurement Missions. Precipitation quiz. West projected to be worst of millennium. Sea level quiz. Test your knowledge of sea level rise and its effect on global populations. The Arctic Ocean is expected to become essentially ice free in summer before mid-century.
Global Ice Viewer. Images of Change. Explore a stunning gallery of before-and-after images of Earth from land and space that reveal our home planet in a state of flux. Climate Mobile Apps. Keep track of Earth's vital signs, see the planet in a state of flux and slow the pace of global warming with NASA's free mobile apps.
Travel through Earth's recent climate history and see how increasing carbon dioxide, global temperature and sea ice have changed over time. Eyes on the Earth. Now climate scientists have concluded that we must limit global warming to 1.
These effects are felt by all people in one way or another but are experienced most acutely by the underprivileged, the economically marginalized, and people of color, for whom climate change is often a key driver of poverty, displacement, hunger, and social unrest. Normally this radiation would escape into space, but these pollutants, which can last for years to centuries in the atmosphere, trap the heat and cause the planet to get hotter.
These heat-trapping pollutants—specifically carbon dioxide, methane, nitrous oxide, water vapor, and synthetic fluorinated gases—are known as greenhouse gases, and their impact is called the greenhouse effect. In the United States, the largest source of greenhouse gases is transportation 29 percent , followed closely by electricity production 28 percent and industrial activity 22 percent. Curbing dangerous climate change requires very deep cuts in emissions, as well as the use of alternatives to fossil fuels worldwide.
The good news is that countries around the globe have formally committed—as part of the Paris Climate Agreement —to lower their emissions by setting new standards and crafting new policies to meet or even exceed those standards.
To avoid the worst impacts of climate change, scientists tell us that we need to reduce global carbon emissions by as much as 40 percent by For that to happen, the global community must take immediate, concrete steps: to decarbonize electricity generation by equitably transitioning from fossil fuel—based production to renewable energy sources like wind and solar; to electrify our cars and trucks; and to maximize energy efficiency in our buildings, appliances, and industries. They also said the odds of similar droughts happening in the future had roughly doubled over the past century.
And in , the National Academies of Science, Engineering, and Medicine announced that we can now confidently attribute some extreme weather events, like heat waves, droughts, and heavy precipitation, directly to climate change.
In other words, global warming has the ability to turn a category 3 storm into a more dangerous category 4 storm. In fact, scientists have found that the frequency of North Atlantic hurricanes has increased since the early s, as has the number of storms that reach categories 4 and 5. The Atlantic hurricane season included a record-breaking 30 tropical storms, 6 major hurricanes, and 13 hurricanes altogether. With increased intensity come increased damage and death.
The impacts of global warming are being felt everywhere. Extreme heat waves have caused tens of thousands of deaths around the world in recent years.
And in an alarming sign of events to come, Antarctica has lost nearly four trillion metric tons of ice since the s. Rising temperatures are affecting wildlife and their habitats. As temperatures change, many species are on the move.
Some butterflies, foxes, and alpine plants have migrated farther north or to higher, cooler areas. Precipitation rain and snowfall has increased across the globe, on average. Yet some regions are experiencing more severe drought , increasing the risk of wildfires, lost crops, and drinking water shortages. Some species—including mosquitoes , ticks , jellyfish , and crop pests—are thriving. Booming populations of bark beetles that feed on spruce and pine trees, for example, have devastated millions of forested acres in the U.
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