solar heating due to space weather is responsible for about --- of this increase.

It is difficult to give an exact percentage as the impact of solar heating due to space weather on Earth's temperature increase is still a topic of ongoing research and scientific debate. However, according to the Intergovernmental Panel on Climate Change (IPCC), solar forcing, which includes variations in solar irradiance and solar activity, is estimated to contribute about 10% or less to the total warming observed since pre-industrial times.

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