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In 2000 carbon dioxide emissions were 368 ppm (parts per million). This year (2013) they reached 400 ppm. At the beginning of the Industrial Revolution they had been 280 ppm for thousands of years.
Wiki User
∙ 10y ago
Wiki User
∙ 9y agoThe carbon dioxide levels in the atmosphere have increased since 1958. Now there are more than 395 parts per million of carbon dioxide in the atmosphere.
Wiki User
∙ 14y agoit skyrocketed
from 1850 CO2 levels had risen excessively (which makes sense because the industrial revolution began in the 1850s) then in 1950 the CO2 levels rose even more
Wiki User
∙ 11y agoIn 1990 it was 353 ppm. Today (2012) it is 393 ppm.
Wiki User
∙ 11y agoCarbon dioxide levels in the atmosphere in 1850 were around 290 ppm (parts per million). Levels now (2013) are approaching 400 ppm.
Wiki User
∙ 11y agoLevels have risen from 315 ppm (1960) to 392 ppm (in 2012).
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How has the level of hormones in the combined pill changed since it was first developed?
The first version was made in the 1950's which contained a high level of oestrogen and progesterone. But soon, there were side effects of oestrogen like blood clots. Therefore, the pill right now has a lower dose of oestrogen so that means lower side effects.
Is a 1950 US Quarter pure silver?
The 1950 US quarter is 90% silver and 10% copper.
What is 1950 degrees Fahrenheit in Celsius?
1065.56 C
What are 1950 pennies made of?
In 1950, US cents were made of a bronze alloy containing 95% copper with the remaining 5% being a varying mixture of tin and zinc.
Who invented kiss proof lipstick first?
Hazel Bishop in 1950.
When did Battle of Yongdong happen?
Battle of Andong happened in 1950-07.
What is an events happened in 1941-1950?
what is events that happen in 1941-1950
Is Santorini volcano dormant or extinct?
The volcano is an active one; now (I visited the island in September 2010) only some fumaroles with sulphur, carbon dioxide, water vapour.
Who invented the carbon dating?
willard libby invented carbon dating in early 1950's.
What happened on October 28 1950?
Torcida Split was founded on October 28, 1950.
What happened to Korea in 1950?
Korean war
What happened in America 1950?
Women were oppressed.
What happened in the 1950 - 1960?
Elizabeth ]]was crowned as queen.
What happened to the population between 1950 to the 1990?
It doubled
How many divorces happened in Britain in 1950?
3
What major events happened in 1950?
The television was born
What are the release dates for Stars Over Hollywood - 1950 It Happened in Heaven?
Stars Over Hollywood - 1950 It Happened in Heaven was released on: USA: 6 August 1951
