Venus is like Earth the same way both a table and a cow have four legs.
From the announcement you read only the parts how Venus and Earth are similar, but not how they differ. The runaway effect was possible because Venus had less water, is closer to the Sun, and has no magnetic shield. The runaway effect you imagine on Earth needs significant changes in its chemical composition, in its mass, or its physical attributes like magnetic field and thermal input. Humanity is still far from doing something like that. Weight until we start building a cosmic mirror, have self-sustained nuclear reaction on a global scale, or build an earth spanning superconductor network with massive energy volume that would counter the magnetosphere.
gostsamo|5 years ago
From the announcement you read only the parts how Venus and Earth are similar, but not how they differ. The runaway effect was possible because Venus had less water, is closer to the Sun, and has no magnetic shield. The runaway effect you imagine on Earth needs significant changes in its chemical composition, in its mass, or its physical attributes like magnetic field and thermal input. Humanity is still far from doing something like that. Weight until we start building a cosmic mirror, have self-sustained nuclear reaction on a global scale, or build an earth spanning superconductor network with massive energy volume that would counter the magnetosphere.