Though Climate change is a vast topic but NOAA, METEOSAT and RSAT data may help to analyse some of the elements of climate.

there is no special satellite for CC. instead, rainfall, temperature, and RH trends might be used as indicators which can be downloaded from the following link:

http://reverb.echo.nasa.gov/reverb/

Many Thanks 

there are two datasets: RSS &UAH.

Formerly there were discrepancies between them, but these have recently been resolved.

You may read online outdated comments concerning satellite drift errors, but these errors were corrected long ago, so now current satellite temperate estimates are consistent with radiosonde data.

http://www.remss.com/measurements/upper-air-temperature

http://vortex.nsstc.uah.edu/data/msu/

More links:

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

there are two datasets: RSS &UAH.

Formerly there were discrepancies between them, but these have recently been resolved.

You may read online outdated comments concerning satellite drift errors, but these errors were corrected long ago, so that now current satellite temperate datasets are consistent with each other and with radiosonde data.

http://www.remss.com/measurements/upper-air-temperature

http://vortex.nsstc.uah.edu/data/msu/

More links:are given in these articles:

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

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

Hi,

definitely, it depends on your resolution and your data. But in my opinion you can use METEOSAT, LandSat and.... , but if you want to trace historical data for climate change from past to now you can use other products such as APHRODTE,  TRMM, AgMERRA or CRU with different resolutions.

Best wishes,

Nasrin