Not exact matches
Given how much yelling takes place on the Internet, talk radio, and elsewhere over short - term cool and
hot spells in relation to
global warming, I wanted to find out whether anyone had generated a decent decades - long graph of
global temperature trends accounting for, and erasing, the short - term up - and - down flickers from the cyclical shift in the tropical Pacific
Ocean known as the El Niño — Southern Oscillation, or ENSO, cycle.
I particularly enjoyed the slides that, when combined (1) provided an overview of
hotter and cooler CO2 molecules as it relates to how they are seen from outer space and from profile — because this will make it easier for me to explain this process to others; (2) walked through the volcanic and solar activity vs assigning importance to CO2 changes — because this another way to help make it clearer, too, but in another way; (3) discussed CO2 induced warming and
ocean rise vs different choices we might make — because this helps point out why every day's delay matters; and (4) showed Figure 1 from William Nordhaus» «Strategies for Control of Carbon Dioxide» and then super-imposed upon that the
global mean
temperature in colors showing pre-paper and post-paper periods — because this helps to show just how far back it was possible to make reasoned projections without the aid of a more nuanced and modern understanding.
Whether we look at the steady increase in
global temperature; the buildup of greenhouse gases in the atmosphere to the highest level in a half - million years; the march of warmest - ever years (9 of the10
hottest on record have occurred since 2000); the dramatic shrinking of mountain glaciers and Arctic sea ice; the accelerating rise in sea level; or the acidification of our
oceans; the tale told by the evidence is consistent and it is compelling.
World
ocean surface
temperature spikes were the primary driver of the new
global surface
temperature record with NOAA's measure showing a majority of months as
hottest ever recorded for the world
ocean.
It means
hotter global temperatures, more extreme weather events like heatwaves and floods, melting ice, rising sea levels and increased acidity of the
oceans.
What's particularly striking, scientists say, is that 2014 was so
hot without the benefit of an El Niño, a cyclical phenomenon in the Pacific
Ocean that can periodically bump up
global temperatures a bit — as happened in previous record years like 2010 and 2005 and 1998.
Whereas if incorrectly use the term to mean make something
hotter - the
oceans are not making things
hotter, but rather they are moderating, and increasing the average
global temperature.
Global warming took surface
temperatures in 2017 to near - record levels, while the upper
oceans reached their
hottest known level.
19 January, 2018 —
Global warming took surface
temperatures in 2017 to near - record levels, while the upper
oceans reached their
hottest known level.
Jeff Masters, a meteorologist with a bent to blaming every weather event on
global warming, chose to make some extreme claims about
hot ocean temperatures that are... er... well, bizarre for someone with a science background.
The impact of changes in the
ocean overturning circulation on climate has become a
hot topic today as
global temperatures rise and melting sea ice and glaciers add freshwater to the North Atlantic.
Many scientists believe
hotter and cooler
oceans could lead to dramatic shifts in not just
global temperature levels but also hurricane frequency.
That envelope is not just a matter of
global - average surface
temperature (to which the misleadingly innocuous term «
global warming» applies) but of averages and extremes of
hot and cold, wet and dry, snowpack and snowmelt, wind and storm tracks, and
ocean currents and upwellings; and not just the magnitude and geographic distribution of all of these, but also the timing.
Hot global temperatures are heating up the
oceans, and are compounded by a strong El Niño pattern, causing stresses, vulnerability, and death to corals that can not withstand the
hotter temperatures.
There has not been shown to be a density variation of significance that correlates with average
temperature variation (e.g, the recent high average
temperature came from a small very
hot area over the
ocean and a small northern area, and more normal to even colder
temperatures everywhere else, not
global temperatures being warmer), and Solar activity has been shown to correlate very well with much of the long term (thousands of years time scale)
global temperature trend.
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Hottest Decade on Record