The issue focused on alternative explanations for climate change (mainly greenhouse gases). Keywords: greenhouse gases, atmospheric dynamics, atmospheric circulation, atmospheric circulation trends, atmospheric circulation variability, atmospheric circulation variability trends, atmospheric circulation variability trends, atmospheric circulation variability trends, atmospheric circulation variability trends, atmospheric circulation variability trends, atmospheric circulation variability trends, atmospheric circulation variability trends, atmospheric circulation variability trends, atmospheric circulation variability trends, atmospheric circulation variability trends, atmospheric circulation variability trends, atmospheric circulation variability trends, atmospheric circulation variability trends, atmospheric circulation variability