Sentences with phrase «understood ancient climates»

Answer: While there are poorly understood ancient climates and controversial climate changes in earth's long geological history, there are no clear contradictions to greenhouse theory to be found.

Not exact matches

Scientists are interested in studying ancient warming events to understand how the Earth behaves when the climate system is dramatically perturbed.

But experts say the pattern of Eocene rainfall and rivers, while perhaps important for ancient climate changes, may not help understand future climate changes.

The bones of this 43 - foot, one - ton, crocodile - munching behemoth — found amid the remains of an ancient rain forest — are helping scientists understand what the earth was like when the climate was much warmer.

If we can analyze ancient climates, atmospheric compositions and the interplay among the crust, atmosphere, life and climate in the geologic past, we can take some first steps at understanding what is happening today and likely to happen tomorrow.»

This study therefore shows that climate warming is not the only explanation of global ecological disasters in the past on Earth: it is important to continue analysing ancient marine sediments to gain a deeper understanding of the earth's climate system.

Ongoing projects examine the paleoenvironmental context for human evolution and cultural development, reconstructing ancient rivers and lakes, dating geological formations, and attempting to understand the role that climate change had in producing new species and stone - tool cultures.

Being able to reconstruct ancient climate change is a critical part of understanding why the climate behaves the way it does.

For some contrasts between the Younger Dryas and the most serious droughts since then at 8200, 5200, and 4200 years ago, see Fagan (1999) and Harvey Weiss, «Beyond the Younger Dryas: Collapse as adaptation to abrupt climate change in ancient West Asia and the Eastern Mediterranean,» pp. 75 - 98 in Confronting Natural Disaster: Engaging the Past to Understand the Future, G. Bawden and R. Reycraft, editors (University of New Mexico Press 2000), at http://www.yale.edu/nelc/weiss/byd.html.

This work has also been a benchmark for understanding Mars» past and present climate, and is essential in determining whether or not life was possible on ancient Mars.

Once at odds, a climate expert and botanist who studies ancient plants later teamed up to improve understanding of one of the warmest periods in Earth history.