Perubahan iklim: Perbedaan antara revisi

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[[Dampak manusia terhadap lingkungan|Aktivitas manusia]] juga dapat mengubah iklim bumi, dan saat ini mendorong perubahan iklim melalui [[pemanasan global]].<ref>{{Cite book|publisher=The National Academies Press |isbn=0-309-14588-0 |last=America's Climate Choices: Panel on Advancing the Science of Climate Change; National Research Council |title=Advancing the Science of Climate Change | location=Washington, D.C. |year=2010 |url=http://www.nap.edu/catalog.php?record_id=12782 |quote=(p1) ... there is a strong, credible body of evidence, based on multiple lines of research, documenting that climate is changing and that these changes are in large part caused by human activities. While much remains to be learned, the core phenomenon, scientific questions, and hypotheses have been examined thoroughly and have stood firm in the face of serious scientific debate and careful evaluation of alternative explanations. (pp. 21–22) Some scientific conclusions or theories have been so thoroughly examined and tested, and supported by so many independent observations and results, that their likelihood of subsequently being found to be wrong is vanishingly small. Such conclusions and theories are then regarded as settled facts. This is the case for the conclusions that the Earth system is warming and that much of this warming is very likely due to human activities. |deadurl=yes |archiveurl=https://web.archive.org/web/20140529161102/http://www.nap.edu/catalog.php?record_id=12782 |archivedate=29 May 2014 |df=}}</ref> Tidak ada kesepakatan umum dalam dokumen ilmiah, media, atau kebijakan mengenai istilah yang tepat untuk digunakan merujuk pada [[Dampak manusia terhadap lingkungan|antropogenik]] perubahan yang dipaksakan; baik "pemanasan global" atau "perubahan iklim" dapat digunakan.<ref name=":1"/>
 
Bidang [[klimatologi]] menggabungkan banyak bidang penelitian [[ilmu pengetahuan alam|yang berbeda]]. Untuk periode perubahan iklim kuno, para peneliti mengandalkan bukti yang disimpan dalam [[proksi (iklim)|proksi iklim]], seperti [[inti es]],<ref name=":4"/>. [[dendrochronologi|cincin pohon purba]], catatan geologis perubahan [[permukaan laut]], dan [[glasiologi|geologi glasial]]. Bukti fisik dari perubahan iklim saat ini mencakup banyak bukti independen, beberapa di antaranya adalah catatan suhu, hilangnya es, dan peristiwa cuaca ekstrem.
 
== Terminologi ==