And a related question would be, "Can Volcanoes influence the climate more than human activity?"
The two are not the same. What could happen =/= what is actually what is going on. As you can see in the graph supplied by Baccheus. volcanoes can have a dramatic effect on weather and climate.
At various times in the distant past volcanoes have greatly influenced the climate. But today volcanoes have a smaller influence than humans. That could change suddenly if there were a giant eruption. But it would have to be a really GIANT eruption. Bigger than any in recorded human history. Bigger than the 1883 eruption of Krakatoa.
I would say we don't really know. We have a good idea that volcanoes can significantly affect climate but we don't really know how much of CO2 is affecting climate. I was downwind from St. Helen's in 1980 in Yakima Washington during a later eruption but I was in the Army in armored vehicles that tend to grab ash and throw it in the air behind them. Every time I went to Yakima I ended up coughing up blood and losing my voice and then I was crazy enough to get a geology degree. That ash is like breathing in fragmented powered glass. It can affect the climate but sulfur from volcanoes seems to have an even greater influence.
"We find that volcanoes play a particularly important part in the phasing of the multidecadal variability through their direct influence on tropical sea-surface temperatures, on the leading mode of northern-hemisphere atmosphere circulation and on the Atlantic thermohaline circulation. We suggest that the implications of our findings for decadal climate prediction are twofold: because volcanic eruptions cannot be predicted a decade in advance, longer-term climate predictability may prove challenging, whereas the systematic post-eruption changes in ocean and atmosphere may hold promise for shorter-term climate prediction."
"No unambiguous evidence exists of dangerous interference in the global climate caused by human-related CO2 emissions. In particular, the cryosphere is not melting at an enhanced rate; sea-level rise is not accelerating; and no systematic changes have been documented in evaporation or rainfall or in the magnitude or intensity of extreme meteorological events.
Any human global climate signal is so small as to be nearly indiscernible against the background variability of the natural climate system. Climate change is always occurring."
If Man, in the future, achieves a capability to change global temperatures, he will likely use that technology to warm the planet, not to cool it.
They can for short periods if they are big enough. The chart below is monthly anomalies of the lower troposphere. It is from DrRoySpencer.com and put it here because a couple of natural forcings with temporary affects are nicely labeled. The ongoing linear trend in this data is +0.13 degrees C per decade since 1979. You can see that natural events including one major volcano can have much larger effects in a single year. But those natural events are temporary whereas the increase in CO2 is permanent and is creating the upward trend which over decades has the much greater effect.
If you go strictly by the amount of gasses and particulate released overall volcanoes have released much more. However humans have added alot with our carbon burning and from there you can debate how much faster the cycle of ice ages has increased. We have sped things up but the earth goes through ice ages with or without us.
Increased volcanic activity is one of the many possible reasons that alarmists use to explain the global warming pause which does not exist (not a typo, this is the way they actually think. They claim the pause is not occurring and at the same time can explain why it is).
http://www.livescience.com/43588-volcano...
No. There is not constant volcanic activity
but there are tons of c02 being spewing into the air daily, by human activity
no
humans emit 100 times more co2 than all volcanoes
no
humans emit 100 times more co2 than all volcanoes
What are your thoughts?
No. There is not constant volcanic activity
but there are tons of c02 being spewing into the air daily, by human activity
I lived in San Jose when Mt. St. Helens blew. According to the weather bureau we had temperatures 6 degrees below normal due to dimming. I know of no man made activity that could cause that.
Yes, it has been demonstrably proven.
Volcanoes is a natural beauty I think and naturally it will be again and again but human activity is very dangerous and harmful for nature...
no
humans emit 100 times more co2 than all volcanoes
We still have a lot to learn about the impact of volcanos.....especially the undersea variety.
We still have a lot to learn about the impact of volcanos.....especially the undersea variety.
No. There is not constant volcanic activity
but there are tons of c02 being spewing into the air daily, by human activity
We still have a lot to learn about the impact of volcanos.....especially the undersea variety.
We still have a lot to learn about the impact of volcanos.....especially the undersea variety.
no
humans emit 100 times more co2 than all volcanoes
We still have a lot to learn about the impact of volcanos.....especially the undersea variety.
No. There is not constant volcanic activity
but there are tons of c02 being spewing into the air daily, by human activity
Usually no, volcanoes have minimal effect lasting a year or two, all though in the past mega volcano eruptions might have, it is thought that the Toba eruption may have nearly wiped out the human race
http://r.search.yahoo.com/_ylt=A0SO80pPs...
i think they influence climate more because the lava kills all the plants, animal homes around it and the ash gets in the air and the atmosphere and can stay there going around atmosphere for a very long time
We still have a lot to learn about the impact of volcanos.....especially the undersea variety.
We still have a lot to learn about the impact of volcanos.....especially the undersea variety.
no
humans emit 100 times more co2 than all volcanoes
no
humans emit 100 times more co2 than all volcanoes
no
humans emit 100 times more co2 than all volcanoes
only with the mount of gases released in the air.
