/sci/ - Science & Math

A friend claimed that a possible grand solar minimum in the coming decades would lead to levels of cosmic rays that would endanger human spaceflight. Is he full of shit?

>>10761179
Also perhaps the sun is responsible as sunspot activity correlates with warming

>>10250136
I mean in the sense that how much of the temperature rise is a result of urbanisation and building around meteorological sites?

Here is a picture of the recent sunspot activity, which I believe has been the prime driver (with temperature lagging)

>>9294404
jesus read the actual science about this

First of all where do any of the researchers claim an 'ice age' will happen? They don't. They say

>'We predict that this will lead to the properties of a 'Maunder minimum''

A Maunder Minimum is not an ice age.

>'When there is full phase separation, we have the conditions last seen during the Maunder minimum, 370 years ago.'

Funny, human civilization didn't collapse in 1647

Look at my picture. Solar activity has been steady for the last few decades and the temperature hasn't, it has been going up, so why would a dip cause an 'ice age'? The planet will get warmer due to greenhouse gases regardless

http://www.pik-potsdam.de/~stefan/Publications/Journals/feulner_rahmstorf_2010.pdf

>Here we use a coupled climate model to explore the effect of a 21st‐century grand minimum on future global temperatures, finding a moderate temperature offset of no more than −0.3°C in the year 2100 relative to a scenario with solar activity similar to recent decades. This temperature decrease is much smaller than the warming expected from anthropogenic greenhouse gas emissions by the end of the century

>independant
>dailymail
>astronomynow

>'somewhat credible'

lmao

>>9251188
You might be talking about the Solar Cycle.

https://en.wikipedia.org/wiki/Solar_cycle

If this is what you're talking about, then I'd like to make a counterpoint: we're roughly within the trough of the cycle, meaning solar activity is going to be lowest. However, this doesn't mean that it will cause an ice age (see graph).