From SDC(UK): The Earth as a whole is approximately a steady state. Neither the surface nor the mass of the earth is growing or shrinking; the inflow of radiant energy to the Earth is equal to the outflow; and material imports from space are roughly equal to exports (both negligible). None of this
means that the earth is static—a great deal of qualitative change can happen inside a steady state, and certainly has happened on Earth. The most important change in recent times has been the enormous growth of one subsystem of the Earth, namely the economy, relative to the total
system, the ecosphere.