‘Humanae Vitae’ is the defended gateway that has held the ground against further ideological incursions into the ecclesial sheepfold, writes Margaret Hickey.

Unlike other animals, humanity has voluntarily limited its reproduction, meaning the Earth and its people will survive as fertility rates fall across the globe, writes Noah Smith.

Humans have caused the start of Earth’s sixth mass extinction, according to leading academics.

Humans have already triggered the start of Earth’s sixth mass extinction, thereby threatening their own future as a species, a study has claimed.