Fission , primarily `` fast '' fission of the natural uranium tamper surrounding Surrounding the fusion capsule , greatly increases Cause_change_of_position_on_a_scale the yield of thermonuclear devices , and constitutes the great majority of the fallout , as nuclear fusion is a relatively clean reaction .

Commentators attributed Causation these price increases Cause_change_of_position_on_a_scale to many factors , including Middle East tension Hostile_encounter , soaring Motion demand Supply from China , the falling Motion_directional value of the U.S. dollar , reports Reporting showing Statement a decline Cause_change_of_position_on_a_scale in petroleum reserves , worries over peak oil , and financial speculation .

The 2011 Lake Champlain and Richelieu River floods Catastrophe were a series of water level increases that began Process_start at the end of April 2011 and caused Causation a subsequent overflow Motion of the Richelieu River in Canada and Lake Champlain in the United States .

days prior to the action , the white house issued Statement a statement Statement that it would `` not support Supporting legislation that reduces Cause_change_of_position_on_a_scale freedom of expression , increases Cause_change_of_position_on_a_scale cybersecurity risk , or undermines the dynamic , innovative global internet . ''

Other improvements generally had to await further economic growth and associated Collaboration wage increases .

Organizers announced Expressing_publicly in November 2011 that they would `` shelve '' the event for the immediate future with plans to `` retool Reforming_a_system '' or `` recreate Creating '' it at some point when the economy improves Cause_to_make_progress and local interest increases Cause_change_of_position_on_a_scale .

PATCO was demanding Request wage increases Cause_change_of_position_on_a_scale , safer working Employment conditions , a 32-hour week , and an end Process_end to long shift patterns .

The authors also projected Research into the future , and the predicted results showed Statement increases Cause_change_of_position_on_a_scale in the drought index , the area under extreme threat of fires Catastrophe , and the days of fire danger , stating Statement that , `` The increase Cause_change_of_position_on_a_scale in extreme fire risk is expected within the coming decade to exceed Cause_change_of_position_on_a_scale that of natural variability and this serves as an indication that anthropogenic climate warming Cause_change_of_position_on_a_scale will likely play a significant role in influence Influence California ’ s fire season . ''

The document recognised Know that climate change Change is one of the greatest challenges Confronting_problem of the present day and that actions should be taken Self_motion to keep Preventing_or_letting any temperature increases Cause_change_of_position_on_a_scale to below 2 °C .