Surely you jest? Just because some cooling in some regions from lower sunspot activity can temporarily mask overall increases in temperature in many other crucial ecosystem zones does not make the notion of climate change a "scam." I almost put you on ignore for that baseless remark.
Consider: --The massive consensus among virtually all neutral climate scientists indicating clear-cut climate change, based on their published work in the most prestigious, peer-reviewed scientific journals (i.e., scientists who aren't shills for oil industry) --Statistically FAR greater catastrophic incidents in recent decades due to extreme weather, as recorded by insurance companies and national officials worldwide --Increase of migrating populations of pathogens (e.g., West Nile Virus, etc.) because of warmer climates --Massive damage to temperate forests because of warmer winters --Evaporating north pole ice --Far greater amounts of methane, not to mention CO2, in the atmosphere (largely because of fast melting tundra--one big methane ice)--and methane traps heat around 30x more potently than CO2 --island nations going underwater and increased storm surges in many urban coastal areas because of rising seas due to warmer ocean temperatures and melting polar areas Etc. etc.
"The major scientific agencies of the United States — including the National Aeronautics and Space Administration (NASA) and the National Oceanic and Atmospheric Administration (NOAA) — agree that climate change is occurring and that humans are contributing to it. In 2010, the National Research Council concluded that "Climate change is occurring, is very likely caused by human activities, and poses significant risks for a broad range of human and natural systems". [1] Many independent scientific organizations have released similar statements, both in the United States and abroad. This doesn't necessarily mean that every scientist sees eye to eye on each component of the climate change problem, but broad agreement exists that climate change is happening and is primarily caused by excess greenhouse gases from human activities. Scientists are still researching a number of important questions, including exactly how much Earth will warm, how quickly it will warm, and what the consequences of the warming will be in specific regions of the world. Scientists continue to research these questions so society can be better informed about how to plan for a changing climate. However, enough certainty exists about basic causes and effects of climate change to justify taking actions that reduce future risks.
"The global average temperature increased by more than 1.4°F over the last century. [2] In fact, according to the National Oceanic and Atmospheric Administration (NOAA), the decade from 2000 to 2010 was the warmest on record, and 2010 was tied with 2005 as the warmest year on record. [3] Rising global temperatures have also been accompanied by other changes in weather and climate. Many places have experienced changes in rainfall resulting in more intense rain, as well as more frequent and severe heat waves. The planet's oceans and glaciers have also experienced changes: oceans are warming and becoming more acidic, ice caps are melting, and sea levels are rising. [4] All of these changes are evidence that our world is getting warmer.
"The Earth does go through natural cycles of warming and cooling, caused by factors such as changes in the sun or volcanic activity. This has been closely examined, and the warming we have seen in the past 50 years cannot be explained by natural factors alone. [5] ... recent global warming is primarily a result of greenhouse gas emissions from human activities.
"The sun has natural periods of warming and cooling. With satellites, scientists have measured fluctuations in the sun's energy and found that these recent variations have been small in comparison to human influences in the last several centuries, with no increase in solar energy in the past 50 years. [2] Thus, changes in the sun's energy cannot explain the warming we have seen over the past several decades. In contrast, the warming we are observing is consistent with the warming properties of carbon dioxide and other heat-trapping gases that we are adding to the atmosphere.
"Changing the average global temperature by even a degree or two can lead to serious consequences around the globe. For about every 2°F of warming, we can expect to see
•5—15% reductions in the yields of crops as currently grown •3—10% increases in the amount of rain falling during the heaviest precipitation events, which can increase flooding risks •5—10% decreases in stream flow in some river basins, including the Arkansas and the Rio Grande •200%—400% increases in the area burned by wildfire in parts of the western United States [6] Global average temperatures have increased more than 1.4 degrees Fahrenheit over the last 100 years. [2] Many of the extreme precipitation and heat events that we have seen in recent years are consistent with what we would expect given this amount of warming. [5] Scientists project that Earth's average temperatures will rise between 2 and 12 degrees Fahrenheit by 2100. [1]
"Multiple temperature records from all over the world have all shown a warming trend, and these records have been deemed reliable by the National Aeronautics and Space Administration (NASA), and the National Oceanic and Atmospheric Administration (NOAA), among others. [8] Other observations that point to higher global temperature includes: warmer oceans, melting arctic sea ice and glaciers, sea level rise, increasing precipitation, and changing wind patterns. [4] "
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