Resolution No.2 (1989): Solar variability effects and downward coupling process

IAGA, recognising the need to distinguish between natural and anthropogenic changes in the atmosphere, so that early signs of the latter can be more accurately evaluated and noting that there is a growing effort in the understanding of solar variability effects in the middle atmosphere, on short term, interannual and decade time scales and recognising that there is now evidence for solar variability effects in the lower stratosphere, recommends more intensive studies of atmospheric responses to solar activity and downward coupling processes to be carried out as one of the IAGA contributions to the goals of the IGBP in conjunction with IAMAP.

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