Unsealed: Alien Files – Alien Earth episode 34

Unsealed: Alien Files – Alien Earth episode 34: Aliens may be causing global climate change in order to make Earth hostile to human life.

In April 2011 the FBI declassified decades’ worth of secret government documents that contain thousands of reports of UFO sightings and alien activity. Each episode of this half-hour series tackles one alien case by investigating the previously off-limits government files. The program re-examines key evidence and follows developing leads based on newly released information.

Mass UFO sightings, personal abductions, government cover-ups, and alien news from around the world are some of the topics covered by the show’s panel of specialists, who include journalists, researchers, and radio and TV hosts. After watching an episode of `Unsealed: Alien Files’, you may begin to believe that `we are not alone’.

Unsealed: Alien Files – Alien Earth episode 34

Climate change includes both global warming driven by human emissions of greenhouse gases, and the resulting large-scale shifts in weather patterns. Though there have been previous periods of climatic change, since the mid-20th century, humans have had unprecedented impact on Earth’s climate system and caused change on a global scale.

Temperature rise on land is about twice the global average increase, leading to desert expansion and more common heat waves and wildfires. Increasing rates of evaporation cause more intense storms and weather extremes. Temperature rise is amplified in the Arctic, where it has contributed to melting permafrost and the retreat of glaciers and sea ice. Additional warming also increases the risk of triggering critical thresholds called tipping points.

Impacts on ecosystems include the relocation or extinction of many species as their environment changes, most immediately in coral reefs, mountains, and the Arctic. Human impacts include undernutrition and hunger from reduced crop yields, declining fish stocks, increases in vector-borne diseases, flooding, potentially severe economic impacts, increased global economic inequality, more people living in uninhabitable climate zones, and increased migration. Effects such as these have led the World Health Organization to declare climate change the greatest threat to global health in the 21st century. Even if efforts to minimize future warming are successful, some effects will continue for centuries, including rising sea levels, rising ocean temperatures, and ocean acidification.