It isn’t uncommon for climate skeptics to claim climate predictions have been wrong. Many climate change predictions are based on modeling, which involves putting data into a computer program and having the program make predictions. It’s not a perfect science, as it’s difficult to account for all the relevant data about an entire planet.
One way to determine a model’s accuracy is to look at old models and see how well they withstood the test of time. A 2019 study in the journal Geophysical Research Letters showed that of 17 climate models published from 1970 to 2007, 10 closely matched the global average temperatures that occurred. That number increased to 14 after "accounting for differences between modeled and actual changes in atmospheric carbon dioxide and other factors that drive climate," according to a 2020 NASA article about the study.
Another 2012 study in the journal Nature Climate Change found that 1990 predictions from the Intergovernmental Panel on Climate Change were fairly accurate. IPCC had suggested that by 2030, Earth would have warmed about 1.1 degrees Celsius, which would amount to about 0.55 degrees Celsius by 2012. The warming that occurred was about 0.39 degrees Celsius.
Despite the difference in the projected and actual temperatures, the 1990 prediction is accurate, Penny Whetton, senior principal research scientist at the Australian government agency Commonwealth Scientific and Industrial Research Organisation and a lead author for the Third Assessment Report of the IPCC, told the nonprofit news website The Conversation in 2012. The difference between the projected 0.55 degrees and the observed 0.39 degrees is because of natural fluctuations, Whetton said.
"This is good evidence to show that what the IPCC has been saying for a while is coming true," she added.
Whenever Israel does anything beyond harsh language, it's a crime against humanity. — RogueAI
She was nasty in tone, and not compelling or smart — Relativist
We killed more Japanese in one night of firebombing — RogueAI
With Trump's victory, Israel's standing is the highest its been in a long time. — RogueAI
Well, it looks like the cease-fire is going to happen, and in my opinion this would clearly show that the Biden administration was simply reluctant to put any pressure on Israel whatsoever, likely in the hopes that stooging for the lobby would get the Dems re-elected. — Tzeentch
Sorry if my inference was wrong. — Relativist
It showed that only 40% support of Republicans for a public option, and 25% supporting medicare for all. — Relativist
What makes you think it's nonsense? Is there some end-point in any liberalism, conservativism, or anything else? — Relativist
You overestimate the popularity of the things you listed — Relativist
the ease with which they could be passed, — Relativist
and the negative consequences (real and perceived) of any specific proposal. — Relativist
A political problem for social liberalism is that there is no reachable goal. It can only ever be a direction. — Relativist
2) each positive step typically has some negative consequences for some. — Relativist
In this American political era, whoever has the best story (fiction or non-fiction) wins. Period. Facts, other than who's giving the most money to who, are irrelevant in politics. In 2020, the story of the overbearing rich taking advantage of middle America won. In 2024, the story of overbearing liberal progressives destroying America won. — alleybear
'Why is this warming period different and more concerning than all them other fluctuations?' — unenlightened
You're arguing that this instance of first degree murder was perhaps good? — Hanover
The murderer did not address the issue, clarify the issue, or make the world in any way a better place. — Hanover
US has rejected public healthcare — Hanover
Compare to more sober, boring, ordinary news channels. — jorndoe
It's very telling of the entire republican party being so ignorant and bad at speaking out against these creeps — Christoffer
If only the Democrats were "anything else". — Benkei
As mentioned earlier, Bernie had the support of the people, so that's a good hint at what type of Democrat the people actually want. — Christoffer
