Sentences with phrase «given global average warming»

Three approaches were used to evaluate the outstanding «carbon budget» (the total amount of CO2 emissions compatible with a given global average warming) for 1.5 °C: re-assessing the evidence provided by complex Earth System Models, new experiments with an intermediate - complexity model, and evaluating the implications of current ranges of uncertainty in climate system properties using a simple model.

Not exact matches

Many governments believe that holding the average global temperature rise caused by man - made warming to 2 degrees Celsius above preindustrial levels gives the world the best chance to avoid dangerous climate change.

Because climate systems are complex, increases in global average temperatures do not mean increased temperatures everywhere on Earth, nor that temperatures in a given year will be warmer than the year before (which represents weather, not climate).

For instance, the canvas buckets give a temperature up to 1ºC cooler in some circumstances (that depend on season and location — the biggest differences come over warm water in winter, global average is about 0.4 ºC cooler) than the modern insulated buckets.

[1] CO2 absorbs IR, is the main GHG, human emissions are increasing its concentration in the atmosphere, raising temperatures globally; the second GHG, water vapor, exists in equilibrium with water / ice, would precipitate out if not for the CO2, so acts as a feedback; since the oceans cover so much of the planet, water is a large positive feedback; melting snow and ice as the atmosphere warms decreases albedo, another positive feedback, biased toward the poles, which gives larger polar warming than the global average; decreasing the temperature gradient from the equator to the poles is reducing the driving forces for the jetstream; the jetstream's meanders are increasing in amplitude and slowing, just like the lower Missippi River where its driving gradient decreases; the larger slower meanders increase the amplitude and duration of blocking highs, increasing drought and extreme temperatures — and 30,000 + Europeans and 5,000 plus Russians die, and the US corn crop, Russian wheat crop, and Aussie wildland fire protection fails — or extreme rainfall floods the US, France, Pakistan, Thailand (driving up prices for disk drives — hows that for unexpected adverse impacts from AGW?)

This is the difference between countries» pledged commitments to reduce emissions of heat - trapping greenhouse gases after 2020 and scientifically calculated trajectories giving good odds of keeping global warming below the threshold for danger countries pledged to try to avoid in climate talks in 2010 (to «hold the increase in global average temperature below 2 °C above pre-industrial levels»).

Each year, the Union of Concerned Scientists (UCS) gives environmental scores to automakers based on average per - mile smog pollution and global warming emissions of the entire fleet of vehicles sold.

Mr. Chamie notes that the relatively enormous thirst for energy, food and other resources from Americans, when compared with that of the average world citizen, gives outsize importance to issues like global warming and to American trends.

The 47,000 wildfires last year may seem like a very large number — and it certainly gives global warming alarmists like Brown plenty of fodder for misleading global warming claims — but the 47,000 wildfires was less than half the average number of wildfires that occurred each year in the 1960s and 1970s.

bozzza - The differences in the Arctic are perhaps 1/4 the ocean thermal mass as global ocean averages, small overall size (the smallest ocean), being almost surrounded by land (which warms faster), more limited liquid interchanges due to bottlenecking than the Antarctic, and very importantly considerable susceptibility to positive albedo feedbacks; as less summer ice is present given current trends, solar energy absorbed by the Arctic ocean goes up very rapidly.

In 2006, the European Union (EU), which consists of 27 members, committed to reducing its global warming emissions by at least 20 percent of 1990 levels by 2020, to consuming 20 percent of its energy from renewable sources by 2020, and to reducing its primary energy use by 20 percent from projected levels through increased energy efficiency.1 The EU has also committed to spending $ 375 billion a year to cut greenhouse gas emissions by at least 80 percent by 2050 compared to 1990 levels.2 The EU is meeting these goals through binding national commitments which vary depending on the unique situation of a given country but which average out to the overall targets.

Given ocean surface is over twice land surface and some of the land some of the time is quite wet this drags down the average that CO2 warming can acheive on a global basis.

Don't really get how anywhere between 1 and 6 degrees of warming is a cheery prospect given, for example, rapid Arctic ice melt at global average of 0.8 degrees.

Global average temperature has been pretty much what was expected, given la Nina conditions and, yes, global waGlobal average temperature has been pretty much what was expected, given la Nina conditions and, yes, global waglobal warming.

I'll look at that web site (from where you provided the images) in more detail when I have a chance — at a first glance, though, where they assert «that the satellite data is inconclusive regarding any discernible trends in the global yearly average temperature over the last 25 years», is a bit odd, given the > 95 % statistical confidence in warming over that time period (as per @ 30).

The difference in global average between the 1982 - 83 El Nino event and the 1997 - 98 event may give an indication of how much warmer than 1998 the yet to come next major El Nino year will be.

Worse, around 2013 the world media began to give attention to claims that there was a «hiatus» or pause in global warming — the average global atmospheric temperature was only slightly above what it had been in the unusual year 1998.

The 2007 IPCC report found that the cost of actions to stabilize concentrations of heat - trapping emissions at a level that gives us a good chance of avoiding dangerous warming would amount to less than a 0.12 percent reduction in average annual global gross domestic product (GDP) growth rate in 2050.

This level would in turn give humanity a 50 % chance of limiting global warming to the internationally agreed limit of a maximum 2 °C global average temperature rise.

However, its analysis seems premised on calculations relating to a 2C global goal, which given that Africa has historically warmed 150 % compared to global averages, would mean an unthinkable 3.5 degrees of warming for the continent.

My experience has been quite otherwise: over the years I've gradually, as circumstances permitted, adopted a lifestyle quite different from the mainstream, one that also (and initially by coincidence, as I'd not really heard of global warming then) gives me a considerably lower than average carbon footprint.

This is the key contradiction of the global warming theory... given this analysis, how can we get higher and higher peak temperatures and / or higher and higher average temperatures?

[Also, just to give an idea of the change we are talking about, 5 degrees Celsius might not sound like much, but that is the difference in global average temperature between the coldest period of an ice age and the hottest period of a warm period or «interglacial» in the Earth's glacial history in the modern epoch.]