Final answer:
The reverse of the ice-albedo feedback is an increase in albedo. Higher albedo reflects more solar radiation, leading to a cooling effect, and is a type of negative feedback that counteracts warming.
Step-by-step explanation:
The reverse of the ice-albedo feedback is an increase in albedo, which means an increase in the Earth's surface reflectivity that leads to more solar radiation being reflected back into space rather than being absorbed. This reverse process can occur due to factors like more snow and ice accumulation that increase the Earth's albedo, thus having a cooling effect. A crucial aspect of this feedback mechanism is negative feedback, which opposes the warming, whereas positive feedback accelerates it. For example, when there is a decrease in albedo due to melting ice, it leads to more solar absorption by darker surfaces like the open ocean, which increases Earth's temperature. Conversely, an increase in albedo due to more reflective surfaces like snow and ice helps to cool the Earth by reflecting more sunlight away from the surface.
Some major factors contributing to the feedback mechanisms are increases in greenhouse gases that trap more heat, changes in cloud cover, and the presence of aerosols in the atmosphere, which can either cool or warm the planet based on their properties.