There are many, many factors aside from the ones you list that affect global temperatures.
how curt of you to simply dismiss that chart of summary external radiative forcing components (natural and anthropogenic). Don't hesitate to provide a summary accounting and substantiation that attributes the relatively recent warming to internal mechanisms and/or natural external forcings.
We don't even know what causes ice ages. They're a global temperature variation I'm not willing to blame Ford Motor Company for. One theory of ice ages is that they are caused when the solar system passes through clouds of galactic dust. But it's just a theory. We don't know where all the dust is, or how much it affects insolation.
with increasing temperatures... you're focused on an "impending ice age"... because???
The sun is a variable star, we just don't have enough data to fully evaluate its variability. That'll certainly have something to do with global temperatures.
no, 'It's NOT the Sun"! Solar irradiance is down as temperature has increased; again:
We also don't know at what rate increased carbon dioxide in the atmosphere will spur plant growth, which will reduce the carbon dioxide in the atmosphere.
nonsense! From the
U.S. Global Change Research Program's latest iterative (2014) National Climate Assessment report:
- Many agricultural regions will experience declines in crop and livestock production from increased stress due to weeds, diseases, insect pests, and other climate change induced stresses.
- Climate disruptions to agricultural production have increased in the recent past and are projected to increase further over the next 25 years. By mid-century and beyond, these impacts will be increasingly negative on most crops and livestock.
- The rising incidence of weather extremes will have increasingly negative impacts on crop and livestock productivity because critical thresholds are already being exceeded.
- Current loss and degradation of critical agricultural soil and water assets by increasing extremes in precipitation will continue to challenge both rain-fed and irrigated agriculture unless innovative conservation methods are implemented.
- Climate change is increasing the vulnerability of forests to ecosystem change and tree mortality through fire, insect infestations, drought, and disease outbreaks. Western U.S. forests are particularly vulnerable to increased wildfire and insect outbreaks; eastern forests have smaller disturbances but could be more sensitive to periodic drought.
- U.S. forests currently absorb about 13% of all carbon dioxide (CO2) emitted by fossil fuel burning in the U.S. Climate change, combined with current societal trends regarding land use and forest management, is projected to reduce forest CO2 uptake.
- Climate change impacts on ecosystems reduce their ability to improve water quality and regulate water flows.
- Climate change combined with other stressors is overwhelming the capacity of ecosystems to buffer the impacts from extreme events like fires, floods, and storms.
- Land- and sea-scapes are changing rapidly and species, including many iconic species, may disappear from regions where they have been prevalent, changing some regions so much that their mix of plant and animal life will become almost unrecognizable.
- Timing of critical biological events, such as spring bud burst, emergence from overwintering, and the start of migrations, will shift, leading to important impacts on species and habitats.
From the latest IPCC AR5 reports:
That's just a handful of the factors we don't really have a handle on.
As I said, jury's out.
deniers gonna deny!
