To date, the only explanation that matches those observations are a concurrent rise in greenhouse gas concentrations in the atmosphere. (scientificamerican.com)
The increase in albedo and decrease in greenhouse gas concentration in the atmosphere will result in the additional decrease in absorbed portion of the solar energy and reduced greenhouse effect. (joannenova.com.au)
Even if emissions were immediately reduced enough to stabilize greenhouse gas concentrations at current levels, climate change would continue for centuries. (scientificamerican.com)