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Persistent human activities like driving cars, farming, burning coal and cutting down forests produce greenhouse gases a€“ mainly carbon dioxide, methane and nitrous oxide. Climate change could have significant impacts on our economy, environment and the way we live a€“ the effects of a warming planet and subsequent changing climate patterns are already becoming evident. However, over the past 50-100 years, increasing industrialisation and human activity (such as industry, agriculture and transportation) have begun to affect the natural climate balance. Since the start of the industrial revolution (about 1750) the overall effect of human activities on the climate has been a warming influence. Scientists are now detecting changes which suggest the climate is becoming hotter on average, and more variable. The graph shows atmospheric concentrations of important long-lived greenhouse gases over the past 2000 years. The United Nations Framework Convention on Climate Change (UNFCCC) defines a€?climate changea€? as a€?a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periodsa€?. The Extreme Weather & Climate Change infographic is based on an evaluation of the Special Report on Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation (SREX), the latest authoritative assessment (2012) by the Intergovernmental Panel on Climate Change (IPCC). You are free to use and post this infographic without alterations online, in written materials, and in presentations. We can reduce global warming emissions and ensure communities have the resources they need to withstand the effects of climate change—but not without you.
Sign up to receive critical updates and urgent action opportunities from the Union of Concerned Scientists. Climate change is already occurring across the planet, according to the White House’s National Climate Assessment report.
With long periods of drought already experienced on the United States’ West Coast, and flooding on the East Coast, it is evident that human-induced climate change is currently unfolding and most be slowed, or the U.S. In addition to the White House’s National Climate Assessment report, Americans across the country have become more aware of the climate changes taking place across the country.
The more drastic changes that indicate that climate change is already occurring involve cities along the coast who have frequent flooding.
In Northern Alaska, sea ice previously present during the summer has diminished and rainstorms in the fall season have caused erosion, posing a threat to surrounding communities. In the short run some climate change might be beneficial to farmers in the Midwest, in a longer growing season.

The data mentioned in the White House report was collected from climate researchers who keep up with world trends. As the National Climate Assessment report’s overview specifically states, the water level has risen in the oceans, rain patterns have changed, acidity levels in the oceans have greatly increased, and the earth has seen an increase in the number of disasters such as hurricanes. Climate change and global warming in the past 50 years has been linked to increased human industrial activity, as carbon dioxide and other heat-trapping gas levels increase sharply. “The emissions come mainly from burning coal, oil, and gas, with additional contributions from forest clearing and some agricultural practices,” says the White House report. While climate change is already occurring, and will continue to do so for several centuries to come, the White House National Climate Assessment report,  as well as other environmental research, agrees that humans still have time to reduce the speed at which these events take place. Whether you believe in the science that purportedly supports climate change or not, the hay is in the barn, so to speak. A financial newsletter that I enjoy reading had a theme a couple of years ago that has stuck with me since.
This process is often called a€?global warminga€™ but it is better to think of it as a€?climate changea€™ because it is likely to bring about more extreme events a€“ floods, storms, cyclones, droughts and landslips a€“ rather than an increase in temperature alone.
Its climate has naturally fluctuated between being very cold and covered in ice, or very hot.
These activities are increasing the amount of greenhouse gases in our atmosphere and causing Earth not only to heat up, but to heat up at an unprecedented rate. The human impact of this era greatly exceeds that due to known changes in natural processes such as solar changes and volcanic eruptions.
This variability is being attributed in part to increased levels of carbon dioxide in the Eartha€™s atmosphere. The UNFCCC thus makes a distinction between a€?climate changea€? attributable to human activities altering the atmospheric composition, and a€?climate variabilitya€? attributable to natural causes. When it comes to heat waves and coastal flooding, the scientific evidence is clear: Human-caused climate change is increasing these extreme weather events. Scientific confidence with observed data is currently low, though the underlying mechanisms of climate change are expected to play a role. Your generous support helps develop science-based solutions for a healthy, safe, and sustainable future. The report, containing detailed records spanning a period of 50 years, shows that human activity is the main cause of recent climatic change, and says that immediate global action and cooperation is needed in order to slow the process. Many notice that the summer season has become longer and more intense, with heat waves lasting a record amount of days at a time.

Other inland areas away from the coasts have also experienced flooding from large rivers and streams. According to both the White House’s National Climate Assessment report and local authorities, people living in this area will most likely face evacuation in the near future. Specially, the data was collected from a broad number of resources, including satellites, weather channels, ocean buoys, and tide gauges. In addition, the northern glaciers have experienced rapid change, with the most decline of ice in history occurring within the past decade. The research team says that, although this presents a difficult task for the world, it is important for citizens to understand the importance of taking action now against climate change, and prepare for future consequences of environmental damage. In the past 10,000 years the planeta€™s climate has become much more stable, leading to flourishing flora and fauna, and the subsequent population explosion of humankind. According to scientific studies, in the past 650,000 years the planet has never had so much carbon dioxide in its atmosphere as it does today, and the levels are continuing to rise. The winter season has become noticeably shorter and warmer for some, colder and longer for others. In the Midwest and Northeast regions of the United States insurance rates have skyrocketed, and flood insurance is totally unavailable in some areas. However the benefits are uncertain, and could reverse to a quick, strained growing season, as the report overview also states. The information all points to the conclusion that the earth has been undergoing a series of difficulties linked to climate change, and that it will be occurring in worsening levels as the years pass. These are just a few examples of how this trend will play out heading into 2015.  There will be no stopping it.
In western states the combination of an earlier snow melt and warmer, drier weather conditions has made it very easy for wildfires to spread. Americans have also faced increased allergic reactions during the spring season, while also noticing changes in species of birds and plants..
Starting earlier and ending later, these fires have burned more square miles than in previous recorded history.

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