Is it true that global warming is measured not by avg daily high buy avg daily low?

Question

From what I understand, the days may not be getting hotter, but the nights do not cool off (on average) as much as they have since we began measuring temps. If this is true, then people think global warming will cause hotter days, yet this may not be the case.?.

Answer 1

Yeah I think your right... Did you ever watch that movie, The Day After Tomorrow, that was a bomb movie.

Answer 2

Global warming is sketchy at best. Below is a link taking you to a NASA chart showing the temperature change from 1880 to 2005. Since 1880 the earth's temperature has risen less than 7/10 of 1 degree C. See for yourself here: http://data.giss.nasa.gov/gistemp/2005/2005cal_fig1.gif

There are numerous charts all over the internet showing the same. The fact that people choose to ignore the facts of these charts shows that they have an agenda to convince the masses of something that really is not happening.

In fact here's a link to a secular scientific article that shows the earth was actually warmer in the past than it is today.
http://www.msu.edu/course/isp/203/raeburn_old/fulltext/class9.pdf

And here's an article from a Harvard University study that says: "Such claims have now been sharply contradicted by the most comprehensive study yet of global temperature over the past 1,000 years. A review of more than 240 scientific studies has shown that today's temperatures are neither the warmest over the past millennium, nor are they producing the most extreme weather - in stark contrast to the claims of the environmentalists.
The review, carried out by a team from Harvard University, examined the findings of studies of so-called "temperature proxies" such as tree rings, ice cores and historical accounts which allow scientists to estimate temperatures prevailing at sites around the world.

The findings prove that the world experienced a Medieval Warm Period between the ninth and 14th centuries with global temperatures significantly higher even than today."

The full article is here: http://www.freerepublic.com/focus/f-news/886197/posts

I hope that helps...

Answer 3

The range between the daily high and low temperature should theoretically decrease with increasing greenhouse gases, so this is one factor that is studied. If the greenhouse effect were the only change in the climate, the Earth could have lower maximum temperatures and higher minimum temperatures. However, climate change is much more than just the greenhouse effect and measuring the Eath's mean surface temperature is extremely complex and involves much more than looking at the range of atmospheric temperatures.

Since the Earth is 3/4 water, changes in ocean temperatures are more significant than air temperature because ocean temperatures are more steady, and the oceans also influence air temperature and air pressure. Since weather patterns are caused largely by ocean temperatures, ocean currents and air pressure, measuring ocean temperatures is an essential part of monitoring long-term changes in climate.