Post Number: 28
|Posted on Saturday, March 02, 2013 - 9:08 pm: ||
However, the million dollar question isn't answered. What causes them to determine it would be a "mini-maunder" and not a full blown ice age event?
Even mini ice ages are accompanied by mass starvation around the planet, massive crop losses, and plagues. If anybody isn't prepared please consider putting aside some food just in case.
Be prepared for shorter growing seasons, more crop damage, and colder, wetter winters. Try to incorporate plantings which are used to surviving short growing seasons and can better withstand frosts.
If you're putting in fruiting plants and trees - try to select some from much colder gardening zones than the current gardening zone maps. Those maps were changed over the last 30 years as a knee jerk reaction to the warming part of the 60 year climate cycle where we have 30 years of warming, 30 years of cooling; repeat. It wouldn't be out of line to add a good 20 degrees less to what your section of the garden zone map indicates.
Post Number: 513
|Posted on Friday, March 08, 2013 - 10:39 am: ||
NASA explains that interactions between the sun, sources of cosmic radiation and the Earth are very complicated, and it takes an interdisciplinary team of heliophysicists, chemists and others to quantify what is really going on. And the Earth’s climate is also affected by cosmic radiation.
So – even if NASA’s prediction of a period of an unusually low amount of sun spots is proven correct – it is hard to know whether that will lead to a large or small reduction in temperature trends.
Solar output is amazingly constant, and the only real short term changes we can look at are sunspots, so there may be some kind of connection, but we don't know quite what that is yet.
The illustrations at left show the raw data for temperature and solar activity at the top, then that data with a 11 year running average to filter out the normal solar activity period. The middle graph suggests a correlation between solar activity and temperature, even though the peaks are offset. But when the last few years of data are included, the curves diverge and severely weaken the case for the driving of temperature by this measure of solar activity. These illustrations were prepared by Chris Merchant, School of GeoSciences, University of Edinburgh from the original data.
Post Number: 228
|Posted on Friday, March 08, 2013 - 12:20 pm: ||
Sylvannah -good and practical advice. A good idea to try to mitigate any climate changes that may be coming our way, to ensure our survival.
Of course, climate change prediction is a new science and prone to error, but if everyone works at a personal and community level to provide food and adequate shelters, it is still a good thing.
Post Number: 514
|Posted on Friday, March 08, 2013 - 12:21 pm: ||
The study, led by Oregon State University paleoclimatologist Shaun Marcott, provides us with the most detailed climate reconstruction ever produced for the last 11,300 years, and accounts for all but a sliver of the modern geological era. That era, called the Holocene, kicked off roughly 12,000 years ago, and has been witness to a host of monumental global changes, including the rise of human civilization around 8,000 years ago. Point being: this reconstruction is absolutely unprecedented in scope. Previous studies have rarely examined beyond the last 2,000 years of Earth's climatic history. Marcott and his colleagues have pushed back our knowledge of global climate by thousands and thousands of years.
Climate data can be derived from many sources — ice cores, cave formations, coral reefs, even the shells of marine organisms — but all of them carry chemical and physical signatures that provide researchers with a reliable record of the planet's past climate. Marcott and his team worked by combining climate record data from around the globe into one vast stockpile of information. The patterns that emerged were extremely telling of a modern spike in global temperatures.
Worldwide temperatures are higher today than at any point in the last 4,000 years, and warmer than about three quarters of anything we've seen in the last 11,000. The study reports that, on the heels of the last Ice Age, global temperatures rose gradually until around the middle of the Holocene, at which point a cooling trend (also gradual) dominated the planet for roughly five millenia. But that all ended around two-hundred years ago. Ever since, temperatures have risen. Steadily at first, then rapidly over the course of the last century or so.
It looks like the ice age out my window, but it's not.