So Global Warming is here and how. Temperatures of the planet have been soaring steadily. They've never been as high in the past 4000 years as they are now and researchers insist that they are showing no sign of a decline. All this warming is causing predictable changes as sea levels rise and danger of floods increase.

More radical changes are occuring in the North as the Arctic is greening rapidly. A study conducted by NASA and University Scientists published in Nature Climate Change states the the growing season in the North is dramatically changing. Analyzing satellite and ground-based data, researchers found that the vegetation in the North resembled that found four to six degrees of latitude further south. In short the Arctic region is blooming.

Is that a good thing or bad?. According to scientists the areas which are blooming and developing new forests will aid global warming, reducing surface reflectivity and further warming the Arctic. This expansion of the forest will impact the wildlife and the inhabitants thereby tilting the delicate balance of the ecosystem. In the coming decades if the warming continues at current rates then the existing shrubs will grow to full fledged trees.

This can negatively impact the region increasing drought stress as well as insect and fire disturbances. If wildfires increase warming could accelerate. If the scientists are correct then, by 2060 these forests will spread down to Alaska and Canada. Greenland’s ice cover will shrink, turning the island over to tundra.

The accumulation of heat trapping gases like the CO2, water vapor, and methane are causing the planet's surface to warm, this warming is reducing the polar sea ice exposing the dark ocean below which in turn traps more heat and increases the heat by warming the air above the water. This phenomena has been labelled by scientists as the amplified greenhouse effect.