The basic evidence for global warming, that it is really happening, is that worldwide instrument measurements show that the world is warming and is continuing to warm. In fact, the last ten years were the warmest decade since instrumental records began in 1850, and the year 2010 was the warmest on record, slightly aboive the record set in 1998 and again in 2005, although because the temperature was only marginally higher, climate scientists regard the as the three equal hottest years globally.
It is difficult to find evidence to refute the instrument measurements. The one serious doubt was based on the urban effect, in which instruments located in originally rural areas gradually become surrounded by urban development, resulting in localised higher temperatures. It was suggested that climate scientists had not properly adjusted for this effect where present, but independent scientists have since confirmed that appropriate adjustments have been made in the climate studies, and confirm that global warming really is happening.
The evidence for global warming are the temperature records collected over the past century. These clearly show global temperature has increased, and dramatically so in the past 30 years.
There isn't any convincing evidence against global warming. There is paltry (a little bit) of evidence to suggest not ALL current warming can be attributed to human activity, but for the most part the evidence we have gathered so far implicates the human consumption of fossil fuels as the primary cause of current global warming.
If one focuses one's attention on a few specific areas of the globe rather than the globe in its entirety, one can build a flimsy case that global warming is not actually occurring. Some of those who argue there is no global warming pick one recent abnormally warm year, and draw a line from it through the coldest parts of more recent years in an effort to suggest temperature is declining, rather than using the standard five or ten year running average indicative of actual climate trend.
I have never heard of ANY conflicting evidence to global warming. I think it's pretty much both a globally accepted truth and scientifically proven fact.
Answer 2
The discussion usually is not whether there is global warming but whether it's caused by humans.
Global warming is a real event.
There is no evidence that global warming is affecting meerkats yet. However the warming is gradually affecting the food chains and habitats of many animals. If this happens, the animals have to migrate, adapt or die.
Global Warming.
There is no evidence that shows jaguars are being affected by climate change.
True global warming does not decrease temperatures. So, either the model for global warming's effects is hokus-pokus, or global warming as presently claimed, does not exist. Some global warming followers will have you believe that global warming makes the weather "act crazy". If true, then it is not really global warming, is it.
Global warming in itself isn't pollution - global warming is the gradual warming of the earth. However, global warming was caused by carbon dioxide pollution in the atmosphere, but global warming in itself isn't a pollution. yes it is a pollution
global warming?
No, not at all. There is no evidence that the global warming is affecting brown bears.
There is no evidence that global warming is a myth. There has certainly been a lot of misinformation on the subject, often from vested interests, but the clear consensus of climate scientists is that global warming is real and that human activities are substantially the cause of global warming since the Industrial Revolution.
There is no evidence that "global warming" is causing birds to migrate differently.
No, that would probably be evidence for global cooling.
On May 19, 1997, in a speech at Stanford University, Browne declared that evidence suggested that global warming could be real. He argued that evidence that burning of fossil fuels was contributing to global warming
Extremely conservative groups tend to be more critical of the evidence of global warming. This has more to do ideology than idiocy, even though over 97% of scientists acknowledge the existence of of global warming.
There is absolutely no evidence that global warming causes shark attacks.
Of course, global warming is a factual environmental issue. Evidence are the floods around the globe, frequent earthquake experiences, more tsunamis incident occurred and etc -- resulting people to die.
The work of 15 climate scientists is helping to educate the public about the overwhelming scientific evidence for human-caused global warming.
At the poles we see that the icecaps seen to be melting.
There is no evidence that global warming is affecting meerkats yet. However the warming is gradually affecting the food chains and habitats of many animals. If this happens, the animals have to migrate, adapt or die.