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Spiritual Strength : Finding Faith, Hope and Purpose in Life

THE CRA PERSPECTIVE Spiritual Strength Finding Faith, Hope and Purpose in Life When circumstances become uncertain, spiritual strength can provide a deeper foundation of faith, meaning, hope, courage and inner peace. “When the world around us becomes uncertain, we often discover how important our inner foundation really is.” We have explored different dimensions of strength: physical strength helps us use our bodies, mental strength helps us face challenges, emotional strength helps us understand our feelings, and moral strength helps us choose what we believe is right. Yet there is another dimension that reaches beyond performance, achievement and circumstances: spiritual strength. Spiritual strength concerns the deeper questions of human existence: W...

How does Earth maintain a constant level of oxygen?



It doesn’t! The oxygen level of the planet has varied quite dramatically in the last 500 million years. It was 35 per cent during the Carboniferous period, around 300 million years ago; as the climate, cooled and land plants died off, oxygen fell to as low as 12 per cent by the beginning of the Triassic. Back then, the air at sea level would have felt thinner than at the top of the Alps today.


Burning fossil fuels has reduced oxygen levels very slightly – about 0.057 per cent over the last 30 years. Deforestation only has a small effect because when rainforest is cut down, other plants are usually grown in its place. But it’s marine phytoplankton (plant plankton), rather than trees, that produces about 75 per cent of atmospheric oxygen. Global warming will have a significant impact on phytoplankton, which is a much more serious threat to oxygen levels. 



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