We developed recursive procedure, which allows estimation of the part of solar energy accumulated in the Earth´s crust and estimation of the half-time of the heat radiation/accumulation parameter. This kind of parameter can show time during which one half of the accumulated energy is released back to space. The theoretical relationships were verified by the long-term pedology measurements. When we used the Wolf´s numbers as a proxy-solar irradiance parameter for the last 11000 years, we were able to estimate the half-time of the heat parameter of the continental crust. The most probable value of this parameter t_{1/2} is 270 years, which means that the amount of energy in the whole crust is now at its maximum, because of the anomalously high solar activity starting after the Little Ice Age. We estimated future accumulated solar energy in the crust based on three scenarios of solar activity. All of the three results show a small increase in accumulated energy until 2060 and after that a smaller or higher drop in accumulated energy, and therefore a decrease in the global surface temperature.