12 p a g e high speed rail affirmative bdl answers to

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: our primary port, road, and rail routes for shipping goods in and out of the country— now operate at or over capacity. Congestion plagues our freight corridors and acts as a drag on the American economy as a whole. In Chicago, the nation’s biggest rail center, congestion is so bad that it takes a freight train longer to get through the city limits than it does to get to Los Angeles. 3 Freight bottlenecks and other forms of congestion cost about $200 billion, or 1.6% of the U.S. gross domestic product (GDP), a year. 11 | P a g e High Speed Rail Affirmative BDL Answers to: Climate Change Theory is False [____] [____] It is nearly certain that climate change is happening and that humans are causing it Robert W. Corell, The Heinz Center, May 2008 (Global Climate Change National Security Implications Second, “Warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global mean sea level.” Note the use by the Panel of words like “unequivocal” which means 90 percent certain or better. Third, “Most of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations.” This also means that there is a 90 percent likelihood. The Report documented several long-term changes in climate: “The global average temperature trend over 1906–2005 is 0.74°C (1.3°F), increasing to 0.2°C (0.36°F) per decade over the last 3 decades; Global average sea level rose 0.17 meters (6.7 inches) over the 20th century; Mountain glaciers and snow cover have declined on average in both hemispheres.” [____] An overwhelming amount of evidence proves that warming is occurring and that it is caused by humans New Scientist, 2007 (May 19, p. 34) Our planet's climate is anything but simple; it depends on the interplay of m any factors, from massive events in the sun to microscopic creatures in the oceans. Yet, a clear picture has emerged, supported by an overwhelming amount of evidence: the world is warming, this warming is due to increasing levels of greenhouse gases caused by human activity, and if emissions continue unabated the warming will too, with ever more serious consequences. True, there are big uncertainties in some predictions, but these swing both ways: the response of clouds might slow warming or could speed it up instead, for instance. 12 | P a g e High Speed Rail Affirmative BDL Answers to: No Impact to Climate Change [____] [____] Climate change will undermine ecosystem biodiversity because species cannot adapt Achim Steiner, Administrator Executive Director United Nations Development Programme, 2007 (United Nations Environment Programme, Fighting Climate Change: Human Solidarity in a Divided World, ) Climate change is already transforming ecol...
View Full Document

This document was uploaded on 02/06/2014.

Ask a homework question - tutors are online