Claim: Martian climate is primarily driven by dust and albedo and there is little empirical evidence that Mars is showing long term warming.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Precession in the alignment of the obliquity and eccentricity lead to global warming and cooling ('great' summers and winters) with a period of 170,000 years.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Current research suggests that Mars is in a warm interglacial period which has lasted more than 100,000 years.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Geomorphic observations of both landscape erosion rates and Martian valley networks also strongly imply warmer, wetter conditions on Noachian-era Mars (earlier than about four billion years ago).

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: The wide range in temperatures is due to the thin atmosphere which cannot store much solar heat, the low atmospheric pressure, and the low thermal inertia of Martian soil.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Their low albedo and carbonaceous chondrite composition have been regarded as similar to asteroids, supporting the capture theory.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Much of the Martian surface is covered with dust.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: "Mars Melt Hints at Solar, Not Human, Cause for Warming, Scientist Says".

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: The “climate forcing due to snow/ice albedo change is of the order of 1.0 W/m at middle- and high-latitude land areas in the Northern Hemisphere and over the Arctic Ocean.” The “soot effect on snow albedo may be responsible for a quarter of observed global warming.” “Soot deposition increases surface melt on ice masses, and the meltwater spurs multiple radiative and dynamical feedback processes that accelerate ice disintegration,” according to NASA scientists James Hansen and Larissa Nazarenko.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: when it gets cold, Mars has precipitation which most likely takes the form of frost, rather than rain or snow.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Martian surface temperatures vary from lows of about −143 °C (−225 °F) at the winter polar caps to highs of up to 35 °C (95 °F) in equatorial summer.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Because of this relationship, researchers have found that many Martian craters contain a great deal of material ; much of it is believed to be ice deposited when the climate was different.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: He stated that warming on Mars was evidence that global warming on Earth was being caused by changes in the sun.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Patterns of solar irradiance and solar variation has been a main driver of climate change over the millennia to gigayears of the geologic time scale, but its role in the recent warming has been found to be insignificant.