Claim: After the 9/11 terrorist attacks grounded commercial air traffic, "there was a temperature drop while the airplanes weren't flying, for the week afterwards."

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Play media At 9:42 a.m., the Federal Aviation Administration (FAA) grounded all civilian aircraft within the continental U.S., and civilian aircraft already in flight were told to land immediately.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: As the airplane approached the Pentagon, its wings knocked down light poles and its right engine hit a power generator before crashing into the western side of the building.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: North American air space was closed for several days after the attacks and air travel decreased upon its reopening, leading to a nearly 20% cutback in air travel capacity, and exacerbating financial problems in the struggling U.S. airline industry.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: The action begins at "9 am., Tuesday, 9/11/2001" and continues for a harrowing week as her uncle attempts to silence her, applying precepts of Sharia law.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: The terrorist aircraft didn't bring the buildings down; it was the fire which followed.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: In the three days following the September 11 attacks on the World Trade Center in New York City, when no commercial aircraft flew in the United States, climate scientists measured the daily temperature range over 5000 weather stations across the USA.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: During this period, a sharp drop in global temperatures took place.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: On September 11, 2001, 19 Arab-Muslim hijackers took control of four commercial aircraft and used them as suicide weapons in a series of four coordinated acts of terrorism to strike the World Trade Center in New York City, the Pentagon in Arlington County, Virginia, and an additional target in Washington, D.C. Two aircraft hit the World Trade Center while the third hit the Pentagon.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: September 11, 2001 : Five Al-Qaeda hijackers fly a commercial jet American Airlines Flight 77 into the Pentagon, as part of the September 11 attacks.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: American Airlines Flight 444 was a Boeing 727 flying from Chicago to Washington, D.C. 's National Airport, which on November 15, 1979, was attacked by the Unabomber.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: There are several causes for a flight to be delayed.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: ATC Zero (Air Traffic Control Zero) is an official term used by the U.S. Federal Aviation Administration (FAA) that means the FAA is unable to safely provide the published ATC (air traffic control) services within the airspace managed by a specific facility.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: A flight delay is when an airline flight takes off and/or lands later than its scheduled time.